This is an overhead image of a cookie with chocolate chips and marshmallows. The cookie has a bite taken out of it and sits on a white counter with another cookie in the top right and bottom right corner of the image. Recipe
VG Vegetarian NF Nut-Free

Chewy Gooey Sourdough S’mores Cookies (use your discard!)

Don’t throw away your sourdough discard! Sourdough cookies are soft, chewy, and loaded with graham crackers, chocolate, and marshmallows for a decadent s’mores cookie!

Prep: 1 hourCook: 10 minTotal: 1 hour 10 min
Servings: 24 cookies 1x


  • 1 cup sourdough starter/discard
  • 12 tablespoons unsalted butter, room temperature or slightly melted
  • 1 cup white granulated sugar
  • 1/2 cup coconut sugar (or brown sugar)
  • 1 egg
  • 1 teaspoon vanilla extract
  • 2 cups all-purpose flour
  • 1 teaspoon baking soda
  • 1/2 teaspoon salt
  • 8 oz (1 cup) chocolate chips or chocolate bar chopped
  • 4 graham crackers, cut in small pieces
  • 1 cup mini marshmallows


  1. Use a handheld electric mixture to mix together the sourdough starter, butter, and sugars until combined. 
  2. Add the egg and vanilla. Mix again until combined. 
  3. Add the flour, baking soda, and salt. Mix until combined. 
  4. Fold in the chocolate, crackers, and marshmallows, reserving some chocolate for the tops of the cookie dough balls. 
  5. Chill the dough for 30+ minutes.
  6. Preheat oven to 350F.
  7. Line a baking sheet with parchment paper. 
  8. Use a cookie scooper or two tablespoons to drop cookie dough balls onto the baking sheet. 
  9. Top each cookie dough ball with a couple chocolate chips. 
  10. Keep the remaining cookie dough in the fridge while this batch of cookies bake.
  11. Bake for 10 minutes. 
  12. Allow the cookies to cool for 10 minutes on the baking sheet before transferring to  cooling rack. 
  13. Continue to work in batches until all the cookie dough is used up. 

Nutrition Info:

  • Serving Size: 1 cookie
  • Calories: 319
  • Sugar: 38g
  • Sodium: 201mg
  • Fat: 9.1g
  • Saturated Fat: 5.7g
  • Unsaturated Fat: 0g
  • Trans Fat: 0g
  • Carbohydrates: 56.4g
  • Fiber: 0.7g
  • Protein: 3.9g
  • Cholesterol: 24mg
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