Milky Way Cake

6 Milky Way bars
1 cup butter or margarine
2 cups sugar
4 eggs
2 1/2 cups flour
1/2 tsp baking soda
1 1/4 cups buttermilk
1 tsp vanilla
1 cup chopped nuts

Combine Milky way bars and 1/2 cup of butter in a medium sauce pan and melt over low heat. While candy is melting, prepare batter. In a separate bowl, cream 1/2 cup of butter and sugar until mixture is light and fluffy. Add eggs one at a time, beating after each addition. Add flour and baking soda alternately with butter milk stirring, until smooth. Add melted candy, mixing well. Stir in vanilla and nuts. Pour batter into greased and floured 10 inch tube pan. Bake at 350 degrees for 1 hour and 20 minutes, or until tooth pick comes out clean. Remove from oven and cool a few minutes. Remove from pan.