Marshmallow Crunch Brownie Bars

These are the most addictive baked good I've made in a long time. Not that a lot of other things I've baked haven't been delicious but these were just deadly. Not only are the flavours delicious (chocolate + marshmallow + peanut butter) but the texture combination is great too. Fudgey brownie, gooey marshmallow, chocolate peanut butter with rice krispies. I'm really hungry for dinner right now so I can't think of much else to say about these - just know that your life is incomplete without them.

If this sounds good, you might also like:
Oreo Crunch Brownie Bars
Chocolate Scotcheroos
Hello Dolly Bars
White Chocolate Brownies

Marshmallow Crunch Brownie Bars
Adapted from Buttercup Bakes at Home found on Nosh With Me & Culinary Concoctions by Peabody

Note: Most marshmallows contain gelatin (an animal product). You can get vegan marshmallows but apparently they're hard to find. Alternately, you can use marshmallow fluff which does not contain gelatin.

Brownie Ingredients:
4 ounces unsweetened chocolate
2/3 cup (1 1/4 sticks) unsalted butter
1 1/4 cup semisweet chocolate chips, divided
1 1/3 cups all-purpose flour
1 teaspoon baking powder
1/2 teaspoon salt
4 large eggs, room temperature
2 cups sugar
2 teaspoons vanilla extract

Topping Ingredients:
1 bag mini marshmallows (I think mine was 7 oz)
1 1/2 cups semisweet chocolate chips
1 cup smooth peanut butter
1 tablespoon unsalted butter
1 1/2 cups Rice Krispies

Preheat oven to 350F. Grease a 9×13-inch baking pan with butter.

In a medium pot, melt the chocolate, butter, and 3/4 cup of the semisweet chocolate chips on medium heat. Stir occasionally while melting. Set aside and cool for 5 minutes. In a medium bowl, whisk the flour, baking powder, and salt together. Set aside. In a large bowl, place the eggs and whisk thoroughly. Add in the sugar and vanilla. Stir the melted ingredients into the egg mixture, mixing well. Stir in the dry sifted ingredients and mix well. Fold in the remaining 1/2 cup semisweet chocolate chips.

Pour the batter into the prepared pan, and spread evenly with a spatula. Bake for 25 to 30 minutes, or until a cake tester inserted into the corner of the pan comes out with moist crumbs.

Remove the brownies from the oven, and immediately sprinkle the marshmallows over them. Return the pan to the oven for 3 more minutes.

While the brownies are baking, place the chocolate chips, peanut butter, and butter in a medium saucepan. Cook over low heat, stirring constantly until melted. Remove from heat, add the cereal,and mix well. Allow this to cool for 3 minutes or so.

Spread the mixture evenly over the marshmallow layer. Refrigerate until chilled before cutting. Cut into 24 bars.