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Sourdough Discard Italian Stromboli

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  • Prep Time: 20 minutes
  • Cook Time: 30 minutes
  • Total Time: 50 minutes
  • Yield: 6 servings
  • Category: Main Dish
  • Method: Baking
  • Cuisine: Italian
  • Diet: Vegetarian

Description

A golden, cheesy Italian Stromboli made with sourdough discard that turns leftover starter into a flavorful, tangy dough rolled with marinara, mozzarella, and classic fillings. Each slice bursts with savory aroma and gooey goodness, perfect for any mealtime.


Ingredients

  • Sourdough Discard: 1 cup
  • All-Purpose Flour: 2 cups
  • Warm Water: 1/2 cup
  • Olive Oil: 2 tablespoons
  • Salt: 1 teaspoon
  • Instant Yeast: 1 teaspoon
  • Marinara Sauce: 1/2 cup
  • Mozzarella Cheese: 1 1/2 cups
  • Pepperoni Slices: 1/2 cup
  • Italian Seasoning: 1 teaspoon
  • Parmesan Cheese: 2 tablespoons
  • Egg Wash (1 egg + 1 tbsp water)


Instructions

  1. Preheat oven to 400°F (200°C) and line a baking sheet with parchment paper.
  2. In a bowl, mix sourdough discard, warm water, yeast, olive oil, salt, and flour. Knead until smooth and elastic, about 8 minutes.
  3. On a floured surface, roll dough into a 10×14-inch rectangle.
  4. Spread marinara sauce over the dough, leaving a 1-inch border. Layer mozzarella, pepperoni, and Italian seasoning.
  5. Roll tightly from one long side, tucking the ends. Place seam-side down on the baking sheet.
  6. Brush with egg wash, sprinkle Parmesan, and bake for 25–30 minutes until golden brown.
  7. Cool for 10 minutes before slicing. Serve with warm marinara sauce.

Notes

  • Do not overfill the dough to avoid bursting during baking.
  • Let it cool slightly before slicing for neat, intact layers.
  • Brush the crust with olive oil and herbs for extra flavor.
  • Reheat slices in the oven for best texture.

Nutrition

  • Serving Size: 1 slice
  • Calories: 320
  • Sugar: 2g
  • Sodium: 610mg
  • Fat: 14g
  • Saturated Fat: 5g
  • Unsaturated Fat: 8g
  • Trans Fat: 0g
  • Carbohydrates: 34g
  • Fiber: 2g
  • Protein: 14g
  • Cholesterol: 35mg