If you love the flavors of S'mores, then you must try this Chocolate Chip Graham Cracker Snack Cake. The simple cake is made with plenty of graham cracker crumbs and chocolate chips, and it's topped with a sweet, fluffy marshmallow frosting.
Preheat oven to 350°F (175°C). Grease an 8-inch square baking pan.
Whisk together the graham cracker crumbs, flour, baking powder, and salt. Set aside.
Using an electric mixer on medium speed, beat the butter and sugar until light and fluffy. Add the egg, egg yolk, and vanilla, and mix well.
Reduce mixer speed to low. Add the flour mixture in three portions, alternating with two portions of milk. Mix just until combined. Stir in the chocolate chips.
Transfer the batter to the prepared pan, and spread evenly. Bake 35 to 40 minutes, or until a pick inserted into the center comes out clean.
Cool in the pan for about 10 minutes. Invert the cake and turn it right side up to cool completely on a wire rack. Alternately, cool the cake completely in the pan and serve directly from the pan.
To make the frosting:
Using an electric mixture on medium speed, beat the butter and sugar until thoroughly combined. Add the vanilla and marshmallow creme, and beat until smooth.
Dollop the frosting on top of servings of the cake. If not using the frosting immediately, cover and refrigerate.