1 cup butter
1 cup sugar
1 cup packed brown sugar
1/2 cup creamy peanut butter
5 eggs
1 teaspoon vanilla
1/2 teaspoon baking soda
1/2 teaspoon baking powder
1/2 teaspoon salt
3 cups flour
1 cup milk
2 cups chopped peanuts, optional

With electric mixer, beat together butters and sugars. Add eggs, one at a time, mixing well. Mix dry ingredients in separate bowl. Measure out milk and set aside. Beat 1/3 of flour mixture then 1/3 of milk into creamed butter mixture. Continue until all ingredients are mix. Stir in peanuts. Pour batter into two prepared loaf pans or one bundt pan. Bake in 325ºF oven for 1 hour and 20 minutes, or until a toothpick inserted in center comes out clean.