3/4 c. butter
1/4 c. peanut butter
4 eggs
1/2 c. buttermilk
2 c. sugar
2 tsp. baking powder
3 c. flour
1 tsp. vanilla
1/2 c. water

Let butter, peanut butter, eggs and buttermilk come to room temperature for easy mixing. Grease and flour bundt cake pan. Preheat oven to 350 degrees. Combine room temperature ingredients with remaining ingredients. Beat slow speed for 30 seconds, then medium speed for 2 minutes. Pour into pan and bake 45 minutes at 350 degrees, then turn oven down to 325 degrees and bake for 20 minutes longer. Cool and frost.

Combine: 1 c. confectioners' sugar 4 to 5 tbsp. buttermilk

Beat all together and frost.