Stephanie's (moms) Coffee Cake

Stephanie's (moms) Coffee Cake

My mom has passed on the baking gene to me, we can't cook but we can bake, and this is the only recipe she's ever shared with me and it's incredibly tasty.  Mine never tastes like hers and she doesn't bake for me anymore.

INGREDIENTS
topping:
1/2 cup sugar
2 tsp cinnamon
pinch of nutmeg (my addition to this)
2 tsp vanilla extract
1/2 cup coarsely chopped walnuts (I put mine in a big bag and step on them, I learned that from her so go forth and conquer)

cake:
1/2 cup butter
2 cups all purpose flour
1 tsp baking soda
1 tsp baking powder
1/2 tsp salt
1 cup sugar
1 cup sour cream

DIRECTIONS
Preheat oven to 350.  Make topping:  in a smal bowl combine sugar, cinnamon, nutment, vanilla and walnuts, set aside.  Butter and flour (with extra butter & flour, not the above flour & butter) a 9 inch springform pan or bundt pan, my mom makes hers in a bundt pan.  Whisk flour, baking powder, baking soda and salt.  In a different bowl beat together butter, sugar and eggs until smooth.  Add the flour mixture alternating with the sour cream starting and ending with fllour.  Spread half in pan and sprinkle with half topping, repeat.  Bake 20-25 minutes and let cool for 10.  Remove from pan.