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S'mores Brownie Skillet

5 from 2 votes
Prep10 mins
Cook20 mins
Total30 mins
Enjoy a classic campfire treat at home. This S'mores Brownie Skillet is warm, fudgy, and gooey, and is a great treat for everyone!
Author: Courtney Paige


  • 8 inch cast iron skillet
  • Hand Mixer
  • Rubber Spatula
  • Measuring cups and spoons
  • Mixing Bowl
  • Microwave safe bowl


  • 2 sheets honey graham cracker
  • 1 cup marshmallows
  • 1 egg
  • ½ cup light brown sugar
  • ½ cup mini chocolate chips
  • ¼ cup + 2 tbsp all purpose flour
  • ¼ cup Greek yogurt
  • ¼ cup white sugar
  • ¼ cup cocoa powder
  • 2 tbsp nut milk
  • 1 tsp vanilla extract
  • ½ tsp baking powder
  • pinch of salt
  • butter or oil


  • Preheat oven to 350°F. Grease your skillet using butter or oil to keep the brownie from sticking.
  • In a mixing bowl, beat egg, Greek yogurt, nut milk, and vanilla extract until combined. 
  • Beat in brown sugar and white sugar.
  • Fold in cocoa powder, all purpose flour, salt, and baking powder.
  • After the batter is thoroughly mixed, fold in chocolate chips.
  • Pour batter into your well greased skillet. 
  • In a microwave safe bowl, crumble 2 sheets of honey graham crackers. Place a tablespoon of butter in the bowl and microwave for 30 seconds. Use a fork to combine crackers and butter. Sprinkle over uncooked brownie.
  • Bake for 18-20 minutes or until the middle is cooked. 
  • Once the brownie is done cooking, turn off the oven and turn on the broiler. Add marshmallows on top of your cooked brownie and place on the top rack of the broiler. Broil for 2-4 minutes or until marshmallows are a golden brown. Be sure to watch closely as they can burn easily!


To make a fudgy brownie batter, it’s important to beat the wet ingredients before you beat in the sugars. Once the sugar and wet ingredients are thoroughly incorporated, you then need to fold in the dry ingredients. The dry ingredients will absorb the sugar and wet ingredients.
You don't want to put a cast iron skillet in the dishwasher or use steel wool or soap. This will strip the seasoning. You don't want to soak it either, or it could rust. To remove stuck on food, you have a few options. Use a sponge or stiff brush or boil water in the skillet. You could also mix coarse salt and water to create a paste and rub it on the stuck on food. Dry your skillet completely with a towel and put on a light coat of oil or shortening. Then, store in a dry place.