Graham-Streusel Coffee Cake - cooking recipe

Ingredients

1 1/2 c. graham cracker crumbs (approximately 21 crackers)
3/4 c. chopped walnuts
3/4 c. packed brown sugar
1 1/2 tsp. ground cinnamon
2/3 c. margarine, melted
1 pkg. yellow cake mix
1 c. water
1/4 c. cooking oil
3 eggs
Powdered Sugar Icing

Preparation

For Streusel:
Combine graham cracker crumbs, walnuts, brown sugar and cinnamon.
Stir in melted margarine; set aside.