Description
If you’re looking for the ultimate dessert to steal the show at your summer cookout, potluck, or patriotic party, look no further than Memorial Day S’mores Brookies. This dessert is a fun mashup that brings together three American favorites — fudgy brownies, chocolate chip cookies, and gooey campfire s’mores — all in one irresistible bar.
Ingredients
Brownie Layer
1 box brownie mix or homemade (see below)
Ingredients listed on box (usually egg, oil, water)
Homemade Brownie Option
1/2 cup butter, melted
1 cup sugar
2 eggs
1/3 cup cocoa powder
1/2 cup flour
1/4 tsp baking powder
1/4 tsp salt
1 tsp vanilla
Cookie Layer
1/2 cup butter, softened
1/2 cup brown sugar
1/4 cup white sugar
1 egg
1 tsp vanilla
1 1/4 cups all-purpose flour
1/2 tsp baking soda
1/4 tsp salt
1/2 cup chocolate chips
S’mores Topping
2 cups mini marshmallows
2–3 graham crackers, broken into pieces
1 Hershey bar or chocolate squares for melting on top
Instructions
Prep pan & oven
Preheat to 350°F (175°C). Line 9×13″ pan with parchment or grease well.Make brownie batter
Mix boxed brownies or homemade batter. Pour evenly into pan.Make cookie dough
Beat butter + sugars until creamy. Add egg + vanilla. Mix in dry ingredients, then fold in chocolate chips.Layer it
Drop spoonfuls of cookie dough over brownie batter. Lightly press down (it doesn’t need to cover fully—will spread).Bake
Bake 25–30 min, until mostly set (a little jiggle is okay—topping will bake again).Add s’mores topping
Sprinkle marshmallows, graham pieces, and chocolate over top. Return to oven 5–8 min, or broil briefly to toast marshmallows golden.Cool & slice
Cool completely for clean cuts OR serve warm and gooey with spoons.
Notes
These indulgent s’mores brookies combine the best of brownies and cookies with a gooey marshmallow topping—perfect for backyard barbecues or holiday gatherings! Serve warm for melty marshmallows, or chill slightly for a firmer, sliceable treat. Add extra chocolate chips or crushed graham crackers for more crunch and flavor.
- Prep Time: 20 minutes
- Cook Time: 25 minutes
- Category: Dessert
- Method: Baked
- Cuisine: American
Nutrition
- Serving Size: 1 brookie
- Calories: 280
Keywords: S’mores brookies recipe, brownie cookie s’mores bars, patriotic s’mores dessert, Memorial Day dessert bars