S'More Snack Cake

1 cup all-purpose flour
2 cups graham cracker crumbs
1 teaspoon baking powder
1/2 teaspoon baking soda
1/2 teaspoon salt
1 cup firmly packed brown sugar
1/2 cup shortening
3 eggs
1 cup milk
1 cup miniature chocolate chips
1 (7 ounce) jar Marshmallow Cr me

Heat oven to 350 degrees F. Grease and flour a 13 x 9 x 2-inch baking pan.

Lightly spoon flour into measuring cup; level off. In a medium bowl, combine flour, graham cracker crumbs, baking powder, baking soda, and salt; mix well. Set aside.

In a large bowl, beat brown sugar, shortening, and eggs until well blended. Add dry ingredients and milk; mix at low speed until well blended. Beat at medium speed 1 minute. Stir in 2/3 cup of the chocolate chips. Spread batter evenly in prepared pan. Bake for 25 to 35 minutes until a wooden pick inserted in center comes out clean. Cool 15 minutes.

Meanwhile, melt remaining 1/3 cup chocolate chips in a small saucepan over low heat. Spoon teaspoonsful of Marshmallow Cr me onto top of warm cake; carefully spread with knife dipped in hot water. Swirl melted chocolate through Marshmallow Cr me to marble. Cool completely.