Brown Butter Sourdough S’mores Brownies

Indulge in the ultimate treat with these Brown Butter Sourdough S'mores Brownies. These super fudgy brownies, made with sourdough discard, feature a delicious layer of graham crackers beneath the rich brownie base. Topped with a decadent layer of melted chocolate and finished with toasted marshmallows, these brownies offer a delightful twist on the classic s'mores experience.

Brown butter s'mores sourdough brownies made with sourdough discard, featuring a fudgy brownie layer over graham crackers, topped with melted chocolate and toasted marshmallows.

If you try out this recipe, I’d love to see it! Leave a comment with a star rating below and tag @wellmadebykiley on Instagram and hashtag it #wellmadebykiley

Ingredients You Need:

Full ingredients and recipe are in the recipe card below.

  • Graham cracker sheets

  • Marshmallows

  • Chocolate of choice

  • Salted butter

  • Semi-sweet chocolate chips

  • Dark chocolate chips

  • Cocoa powder

  • Vanilla extract

  • Egg

  • Egg yolks

  • Granulated sugar

  • Brown sugar

  • Sourdough discard

  • All-purpose flour

  • Salt

Tips for making Brown Butter Sourdough S’mores Brownies:

  1. Use Sourdough Discard: This adds a subtle tang and helps with the fudginess.

  2. Brown the Butter: Take your time to properly brown the butter. Cook it over medium heat until it turns a deep golden brown and has a nutty aroma. This step adds a rich, caramel-like flavor to the brownies.

  3. Proper Mixing: Mix the brownie batter until just combined. Over-mixing can incorporate too much air and result in cakier brownies. Aim for a smooth, thick batter.

  4. Layer Graham Crackers: Line the bottom of your baking pan with a single layer of graham crackers. This creates a crunchy base that complements the fudgy brownies.

  5. Even Batter Distribution: Scoop the brownie batter over the graham crackers and spread it evenly with a spatula. This ensures even baking and a uniform thickness.

  6. Baking Time: Bake the brownies until a toothpick inserted into the center comes out with a few moist crumbs. Avoid over-baking to maintain their fudgy texture. Typically, this takes around 25-30 minutes at 350°F (175°C).

  7. Melted Chocolate Layer: Once the brownies are baked, pour a layer of melted chocolate on top while they are still warm. Spread it evenly over the surface.

  8. Toasted Marshmallow Topping: Arrange marshmallows or marshmallow halves over the melted chocolate layer. Place the pan bake into the ocen for 5 minutes, and then remove. Use a kitchen torch or place the pan under the broiler for a few minutes until the marshmallows are golden brown and toasted. Watch closely to prevent burning.

  9. Cool Before Cutting: Allow the brownies to cool in the pan before cutting. This helps them set and makes slicing easier, resulting in clean, even pieces.

  10. Store Properly: Store any leftover brownies in an airtight container at room temperature for up to 3 days or in the refrigerator for up to a week. The marshmallows may become less crisp over time but will still taste delicious.

By following these tips, you'll achieve perfectly fudgy and flavorful brown butter s'mores sourdough brownies with a delightful combination of textures from the graham cracker base, melted chocolate, and toasted marshmallows.

Brown butter s'mores sourdough brownies made with sourdough discard, featuring a fudgy brownie layer over graham crackers, topped with melted chocolate and toasted marshmallows.

How to store Brown Butter Sourdough S’mores Brownies:

  1. Room Temperature: Store the brownies in an airtight container at room temperature for up to 3 days. This keeps the brownies moist and maintains the texture of the marshmallows.

  2. Refrigeration: For longer storage, place the brownies in an airtight container and refrigerate them for up to a week. Let them come to room temperature before serving, or warm them slightly in the microwave to enhance the fudgy texture.

  3. Freezing: To store the brownies for an extended period, freeze them. Wrap each brownie individually in plastic wrap and then place them in a freezer-safe bag or container. They can be frozen for up to 2 months. Thaw in the refrigerator overnight or at room temperature before serving.

  4. Avoid Stacking: When storing brownies, especially with the toasted marshmallow topping, avoid stacking them directly on top of each other. Use parchment paper or wax paper between layers to prevent sticking and to protect the topping.

  5. Portion Control: Cut the brownies into individual portions before storing. This makes it easier to grab a piece and helps maintain the structure and layers of the brownie, chocolate, and marshmallow.

  6. Reheating Instructions: If you prefer the marshmallows to be slightly warm and gooey, reheat individual brownies in the microwave for about 10-15 seconds or in a preheated oven at 300°F (150°C) for 5-7 minutes.

  7. Serving Suggestions: For the best texture and flavor, allow refrigerated brownies to come to room temperature before serving. This ensures the brownies are soft and the flavors are fully developed.

By following these storing options, you can keep your brown butter sourdough s'mores brownies fresh and delicious, ensuring they maintain their super fudgy texture and delightful layers.


Check out my other chocolate-focused sourdough recipes on Instagram:

Make sure to tag me @wellmadebykiley on Instagram and leave a review or comment if you make these brown butter sourdough s’mores brownies. Happy baking!

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