Easy Marble Cake - cooking recipe

Ingredients

CAKE
3 cups flour
2 cups sugar
1 cup butter (melted)
4 eggs
3 teaspoons vanilla
3 teaspoons baking powder
2 teaspoons baking soda
16 ounces sour cream
TOPPING
1/4 cup sugar
1 tablespoon cinnamon
12 ounces semi-sweet chocolate chips
1/2 - 1 cup chopped walnuts

Preparation

Preheat oven to 350 degrees. Grease and flour 9x12 baking dish. Mix all ingredients together in large bowl. Pour mixture into baking dish.
For topping:
Blend all topping ingredients together in bowl. Sprinkle on cake, then swirl once with knife. Bake 45 minutes to 1 hour.