The tradition of baking in cast iron is a timeless practice, born from a need for consistent heat in early hearths and campfires. This method of preparing a sourdough discard cast iron pizza mirrors the ancient way of using a hot stone or heavy metal to mimic the intense heat of a professional brick oven, ensuring the bottom of the crust fries slightly in the oil for a superior crunch.
Sourdough itself is one of the oldest forms of leavened bread, relying on wild yeast captured from the air and flour. In many cultures, the "starter" was a family heirloom passed down through generations, representing stability and sustenance. Using the discard—the portion removed to keep the starter healthy—is a modern nod to the historical value of frugality and resourcefulness in the home kitchen.
When combined with the Italian influence of tomato sauce and mozzarella, the result is a cross-cultural comfort dish. The heavy skillet creates a unique environment where steam is trapped against the dough, allowing the center to remain tender while the edges caramelize into a deep, golden brown.
Why You'll Love It
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- Honestly, there is just something about that cast-iron sizzle that makes the house smell like a cozy Italian bakery.
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- I love how it uses 1 1/2 cups sourdough discard, so nothing goes to waste in my kitchen, and it gives the crust this lovely, nostalgic tang.
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- Well, look, you get that perfect contrast—a crisp, golden bottom and a soft, airy middle that just feels right.
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- It is just so simple to pull together, meaning you can actually spend time with your family instead of fussing over the dough.
"Honestly, the crust is just incredible. My kids actually asked for "the skillet pizza" every single Friday night now!"
Essential Ingredient Guide
- 1 1/2 cups sourdough discard (about 300 g): This is the heart of the recipe, really. It adds that beautiful depth of flavor and a bit of a chew that you just can't get with store-bought dough.
- 1 1/4 cups all‑purpose flour (150 g): I use this to give the dough its structure. Just measure it gently so the crust doesn't end up too heavy or dense.
- Optional: pepperoni slices or sliced bell peppers: These add such a nice pop of color and saltiness. I mean, pepperoni is a classic, but the peppers make it feel a bit more like a garden meal.
- 1 tsp kosher salt: Don't skip this, honestly. It wakes up all the other flavors and keeps the bread from tasting flat.
- 2 tbsp olive oil: This helps the dough feel supple and gives the edges a lovely golden fry in the pan. It just makes everything feel a bit more rich.
- 1 tsp instant dry yeast: Since we are using discard, a little yeast helps the pizza rise quickly. It gives us that fluffy, airy texture we're all looking for.
Complete Cooking Process
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Getting Everything Ready:
We start by warming up the oven and the skillet together. I also like to let the yeast bloom in warm water for a few minutes—it's a quiet little moment of waiting that ensures the dough will actually rise.
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Developing the Flavor:
Mixing the sourdough discard with the flour and salt creates a shaggy dough that smells wonderfully tangy. Letting it rest for 15 minutes is where the magic happens; the flour hydrates and the flavor settles in.
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Perfecting the Texture:
The secret is pressing the dough thin, about 1/8 inch, into that hot, oiled skillet. This creates that signature crunch on the bottom while keeping the inside tender.
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The Finishing Touches:
After the cheese is bubbly, I love to add a drizzle of good-quality extra-virgin olive oil and a dusting of fresh cracked pepper. It just elevates the whole thing, you know?
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The Perfect Serve:
Let it sit for just 2 minutes—ugh, I know it's hard to wait!—so the cheese sets slightly before you slice into it for the best crunch.
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Preheat your cast-iron skillet overnight if you can for an incredibly even, crispy base.
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Dust the top of your dough with a little flour before it hits the pan to keep it from sticking.
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Try sprinkling a tiny bit of water into the skillet right before adding the dough to create steam.
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Make sure your water is exactly around 110°F so you don't accidentally kill the yeast.
Pro Tips
Just take your time and enjoy the process—your kitchen is going to smell wonderful.
Better For You Treats
I love that this uses 1 1/2 cups sourdough discard because it reduces waste and brings in natural fermentation. It's a bit more mindful than standard dough, and you can even swap the flour for a gluten-free blend if that's better for your belly.
Ways to Make it Your Own
You can go bold with 8 slices of pepperoni and some fresh garlic zest, or maybe try a Mediterranean style with Kalamata olives and crumbled feta. Honestly, the crust is so versatile, it just takes whatever you love.
Serving Suggestions
I usually pair this with a peppery arugula salad dressed in lemon-olive oil to cut through the richness of the 1 cup shredded mozzarella cheese. If you're feeling fancy, a chilled glass of Pinot Grigio is just lovely.
Frequently Asked Questions
→ What if my dough is too sticky to handle?
Oh, that happens! Just add a teaspoon of flour at a time until it's manageable, but remember, a little stickiness is actually okay for a softer crust.
→ Can I use a different pan if I don't have cast iron?
You can, but you'll miss out on that special crunch. An oven-safe cake pan works in a pinch, but cast iron is really the gold standard here.
→ How do I keep the leftover slices from getting soggy?
Well, just pop them in a 375°F oven for about 5 to 7 minutes. It brings back that wonderful crispness and makes them taste almost fresh.
Nutrition Facts
per serving
780
Calories
32g
Protein
84g
Carbs
28g
Fat
Taste Profile
A savory, tangy balance of fermented dough and rich melted cheese.
Ingredient Substitutions
Don't have an ingredient? Try these alternatives
This will give you a slightly chewier, more structural crust.
Any good melting cheese works, though the flavor will change slightly.
Recipe Variations
Try these delicious twists on the original
Pepperoni & Garlic Sourdough Cast Iron Pizza
For a bold, classic flavor, add 8 slices of pepperoni and sprinkle fresh garlic zest over the dough before baking. I love to finish this one with a light drizzle of garlic‑infused olive oil.
Mediterranean Veggie Sourdough Cast Iron Pizza
Give it a Mediterranean twist by topping the crust with sliced red onions, Kalamata olives, cherry tomatoes, and crumbled feta. A swirl of basil‑oignon vinaigrette on top really makes it sing.
Common Mistakes to Avoid
Learn from others' mistakes for perfect results
- Adding too much flour during rolling, which can make the crust tough.
- Putting the dough into a cold skillet, resulting in a soggy bottom.
- Over-mixing the dough; keep it just combined for a lighter texture.
Meal Prep & Storage
Make Ahead Tips
You can prep the dough and let it rest in the fridge overnight for a deeper flavor, though the 15-minute rest is enough for a quick meal.
Leftover Ideas
Keep slices in an airtight container at room temperature for 2 days. To bring back the crunch, reheat in a 375°F oven for 5‑7 minutes.
Perfect Pairings
Serve this with...
Cooking Timeline
Preheat oven and skillet; dissolve yeast in warm water.
Mix dough ingredients and incorporate olive oil and water.
Let the dough rest while prepping toppings.
Roll out dough and transfer to the hot, oiled skillet.
Add toppings and bake until cheese is bubbly.
Sourdough Discard Cast Iron Pizza
There is something so grounding about the smell of a sourdough discard cast iron pizza bubbling in the oven. It combines a tangy, golden-brown crust with melted mozzarella cheese for a cozy meal that feels like a warm hug.
Timing
Prep Time
25 Minutes
Cook Time
12 Minutes
Total Time
37 Minutes
Recipe Details
Ingredients
The Dough
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01
1 1/2 cups sourdough discard (about 300 g)
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02
1 tsp instant dry yeast
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03
1 1/4 cups all‑purpose flour (150 g)
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04
1 tsp kosher salt
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05
2 tbsp olive oil
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06
3/4 cup warm water (110°F / 43°C)
Toppings
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01
1/2 cup tomato marinara sauce
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02
1 cup shredded mozzarella cheese
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03
1 tsp fresh basil, chopped
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04
Optional: pepperoni slices or sliced bell peppers
Instructions
First things first, let's get that oven warming up to 425°F (220°C). Go ahead and pop your cast‑iron skillet right in there while it preheats; we want it nice and hot so the dough can really sizzle when it hits the pan.
Grab a small bowl and stir your instant dry yeast into 2 tablespoons of that warm water. Just let it sit quietly for about 5 minutes—once it gets all frothy, you'll know it's ready to work its magic.
In a larger bowl, mix together your sourdough discard, all‑purpose flour, kosher salt, and that frothy yeast mixture. Stir it with a wooden spoon or a dough scraper until you've got a shaggy dough forming. It's a bit messy, and that's just fine.
Now, stir in the rest of your warm water and the 2 tbsp olive oil. Mix it until it all comes together; it should be a little sticky, but manageable. Honestly, if it feels too dry, just add a teaspoon of water at a time until it feels right.
Cover your bowl with a damp towel or some plastic wrap and let the dough just rest for 15 minutes. It'll rise just a bit and develop those lovely flavors while you get your toppings sorted.
Carefully remove that hot skillet from the oven—be careful, it's really hot! I like to use a paper towel dipped in oil to lightly grease the pan so nothing sticks.
Turn your rested dough out onto a well‑floured surface. Use your hands or a rolling pin to press it into a 10‑inch circle, aiming for about 1/8 inch thick, then gently transfer it into the hot skillet.
Spread your tomato marinara sauce over the crust, then sprinkle on the shredded mozzarella cheese, fresh basil, and any optional toppings you like. Slide it back into the oven for 10–12 minutes until the cheese is bubbly and the edges are a beautiful golden brown.
Pull the pizza out and let it sit for just 2 minutes—I know it's hard to wait—then slice it up. Serve it right away for that perfect crunch.
If you're feeling fancy, finish it off with a little drizzle of good‑quality extra‑virgin olive oil and a dusting of fresh cracked pepper. Wow, it's just lovely.
Notes & Tips
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1
The sourdough discard helps reduce waste and brings a natural tang to the crust.
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2
If the dough feels too sticky, resist the urge to add too much flour; just use a floured surface.
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3
A preheated skillet is the secret to that pizzeria-style bottom crust.
Snacks, Appetizers & Fun Bites
Quick Cucumber Mozzarella Salad
A quick, crisp cucumber and mozzarella salad with a hint of sweet vinaigrette.
Tools You'll Need
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Cast‑iron skillet (10‑12 inch) for a perfectly crispy crust
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Mixing bowl for combining the dough
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Wooden spoon or dough scraper for mixing
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Measuring cups and spoons for precision
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Kitchen scale (optional) for those who like exact weights
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Microplane or fine grater for the cheese
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Sharp knife or pizza cutter for clean slices
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Tongs for handling the hot skillet
Must-Know Tips
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Skillet Temp, Preheat the cast‑iron skillet overnight or during oven preheat for a more even, crispy base.
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Dough Release, Dust the dough top with a little flour before transferring it to the skillet to prevent sticking.
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Steam Method, Sprinkle a little water into the skillet just before adding the dough to keep the crust moist while the cheese melts.
Professional Secrets
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Using a preheated cast iron pan locks in steam and creates a superior bottom sear.
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Allowing the dough a 15-minute rest relaxes the gluten, making it easier to press into the pan.
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Finishing with high-quality olive oil adds a professional gloss and depth of flavor.
What readers are saying
Community reviews from home cooks like you
My new favorite way to make Sourdough Discard Cast Iron Pizza. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. Perfect as written.
It was okay, with a few tweaks. The g) flavor was nice, but i found it a bit sweet for my taste. I might try it again with some adjustments.
I was surprised how good this turned out. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. I found it a bit sweet for my taste. My kids even asked for seconds.
Decent result for the effort. The g) flavor was nice, but it took slightly longer than the recipe said. I might try it again with some adjustments.
Can't believe how simple this was. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. Perfect as written.
This was a hit with my family. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. My kids even asked for seconds.
Will definitely make this again. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. I added a bit more seasoning next time. My kids even asked for seconds.
Nice base recipe. The g) flavor was nice, but i found it a bit sweet for my taste. I might try it again with some adjustments.
The flavors were spot on. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. I swapped one ingredient and it still worked. My kids even asked for seconds.
My new favorite way to make Sourdough Discard Cast Iron Pizza. I really liked how the 1 1/2 cups sourdough discard (about 300 g) and 1 tsp instant dry yeast came together. My kids even asked for seconds.
Recipe by
Sofia RiveraExploring the world through food 🌍🍲 Rich flavors, exciting dishes, and endless culinary inspiration ✨
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