Toll House Crumbcake Ii - cooking recipe

Ingredients

1 tablespoon all-purpose flour
1/2 cup packed brown sugar
2 tablespoons butter, softened
1/2 cup chopped walnuts
2 cups semisweet chocolate chips
2 cups all-purpose flour
1 teaspoon baking powder
1 teaspoon baking soda
1/2 teaspoon salt
1/2 cup butter, softened
1 cup white sugar
1 teaspoon vanilla extract
3 eggs
1 cup sour cream
1 1/2 cups semisweet chocolate chips

Preparation

For the crumb topping: In a small bowl, combine 1 tablespoon flour, 1/2 cup brown sugar and 2 tablespoons butter. Stir in 1/2 cup nuts and 2 cups chocolate chips. Set aside.
Preheat oven to 350 degrees F (175 degrees C). Grease and flour a 9x13 inch pan. In a small bowl, combine 2 cups flour, baking soda, baking powder and salt. Set aside.
In a large bowl, cream 1/2 cup butter, 1 cup sugar and 1 teaspoon vanilla until light and creamy. Add eggs one at a time, beating well after each addition. Add flour mixture alternately with sour cream. Beat until smooth. Fold in 1 1/2 cups of chocolate chips.
Spread batter into a 9x13 inch pan. Sprinkle topping evenly over batter. Bake at 350 degrees F (175 degrees C) for 45 to 50 minutes, or until a toothpick inserted into cake comes out clean. Cool completely.