2 c. plain flour
2 c. sugar
1/4 c. cocoa
2 sticks butter
1 c. water
1/2 c. buttermilk
2 eggs
1 tsp. baking soda
pinch of salt
1 tsp. vanilla
1 tsp. cinnamon

Combine sugar, flour and cocoa. Mix water and butter. Bring to boil. Add buttermilk, salt and soda. Add vanilla and cinnamon. Add eggs.

Bake for 20 minutes at 350°F.

Topping:

1 stick butter
1/3 c. milk
1 box 10x sugar
4 tbsp. cocoa
1 c. chopped nuts
1 tsp. vanilla
1/2 tsp. cinnamon

Mix all ingredients and spread over cake while still in pan.