Cinnamon Nut Coffee Cake
["1 to 2 c. finely chopped walnuts", "2 tsp. ground cinnamon", "1 c. dark brown sugar", "2 c. sugar", "1/2 lb. margarine", "4 eggs", "4 c. flour", "2 tsp. baking powder", "2 tsp. baking soda", "1 pt. sour cream", "2 tsp. vanilla"]
["Make filling and topping by combining walnuts, cinnamon and dark brown sugar.", "Mix well.", "Set aside.", "In a separate bowl, cream sugar and margarine.", "Add eggs and mix well.", "Sift together flour, baking powder and baking soda.", "Add to batter alternately with sour cream.", "Add vanilla and mix well.", "Grease a tube pan. Add dough alternately with topping in layers.", "Sprinkle remaining topping mixture over top.", "Press into dough with fingers.", "Bake 1 hour at 350\u00b0 to 375\u00b0 or until done.", "Cool 1 hour before removing from pan."]
["walnuts", "ground cinnamon", "brown sugar", "sugar", "margarine", "eggs", "flour", "baking powder", "baking soda", "sour cream", "vanilla"]