Sallee's Coffee Cake

My mother-in-law makes the most scrumptious Coffee Cake She originally got the recipe from her mother-in-law (my husband's grandmother Sallee ) and has now passed the recipe on to me. My husband requests it every year around Thanksgiving and Christmas. I especially enjoy eating it for breakfast on Christmas morning or for a late night snack! Coffee Cake Recipe INGREDIENTS 1/2 c. imperial brand margarine, softened 3/4 c. sugar 1 t. vanilla 3 eggs 2 c. flour 1 t. baking soda 1/2 pint regular sour cream Ingredients for the filling/topping: 1 c. walnuts, chopped 6 T. real salted butter, softened 2 t. cinnamon 1 c. brown sugar, packed DIRECTIONS Preheat the oven at 375 degrees. Grease a 10 inch tube pan and set aside. Cream the vanilla, sugar, and margarine in a small bowl. Add the eggs and beat the well. Add portion of flour, baking soda, and sour cream to batter. Slowly alternate ingredients as you are integrating into the batter and mix well. In a separate ...