Author's Note: This recipe is from a book of handwritten cards given to me by my grandmother the Christmas before she died. It is delicious and smells wonderful as it bakes.
Preheat oven to 375 degrees (F).
Using a mixer, mix the ingredients for the cake until smooth and integrated.
Using your fingers, mix the "topping ingredients.
Pour one half of the cake mixture into a greased tube pan. Sprinkle one half of the "topping" over it.
Pour in the rest of the cake mixture. Sprinkle the rest of the "topping" over the top.
Bake for 35 minutes.
After baking, cool in pan for 10 minutes then invert onto a serving platter. Allow to cool at least another 15 minutes before slicing to serve. If desired, you can dust the top of the coffee cake with confectioners' sugar right before serving or drizzle with confectioners' sugar mixed with a little milk.