This is a super simple and fast coffee cake recipe from the mid-60's:

Coffee Cake Delicious1 pkg. yellow cake mix
1 pkg. instant lemon pudding mix
1 8 oz. carton sour cream
1/2 cup oil
4 eggs
1 tsp. vanilla
Nut mixture:
1/2 cup chopped nuts
1 tsp ground cinnamon
1/4 cup white granulated sugar
1/4 cup brown sugar
Combine cake mix, pudding mix, sour cream, oil, eggs, and vanilla and beat about two minutes with a mixer.
Grease baking pan (tube or bundt)
Layer batter with nut mixture ending with nuts on top
Bake at 350 degrees F for 50-55 minutes