1 1/2 c. graham cracker crumbs (about 21 crackers)
3/4 c. chopped pecans or walnuts
3/4 c. packed brown sugar
1 1/2 tsp. ground cinnamon
2/3 c. butter, melted
1 pkg. 2-layer size yellow or white cake mix
1 c. water
1/4 c. cooking oil
3 eggs
Powdered Sugar Icing

For Streusel: In a medium mixing bowl combine graham cracker crumbs, chopped pecans or walnuts, brown sugar and cinnamon. Stir in the melted butter. Set aside.

In a large mixing bowl combine cake mix, water, cooking oil and eggs. Beat on low speed with an electric mixer just until moistened. Beat on medium speed for 1 1/2 minutes. Pour 1/2 of the batter into a greased 13 x 9 inch baking pan. Sprinkle with 1/2 of the streusel mixture. Carefully spread remaining batter over streusel; sprinkle with remaining streusel. Bake in a 350 degree oven for 35 to 40 minutes or until a toothpick inserted near center comes out clean. Cool slightly; drizzle with Powdered Sugar Icing. Serve warm. Makes 12 to 16 servings.

POWDERED SUGAR ICING:

1 c. sifted powdered sugar
1 tsp. vanilla
Enough water until of drizzling consistency