Coffee Cake

1 stick plus 2 Tablespoons margarine
1 cup sugar
2 eggs
2 cups flour
1 teaspoon soda
1 teaspoon baking powder
1/2 teaspoon salt
1 teaspoon vanilla
1 cup sour cream
1/2 cup water

Crumbs:
3/4 cup brown sugar
3/4 cup white sugar
3/4 cup chopped pecans or black walnut

Cream margarine and sugar. Add eggs and beat well. Sift dry ingredients and add alternatively with sour cream, water, and vanilla. Beat well. Put half of batter in 9-inch by 13-inch pan. Sprinkle on half of crumbs, then add remaining batter, then rest of crumbs. Bake 350 degreesfor 50 minutes.