Milky Way Cake - cooking recipe

Ingredients

1 cup milk
1 Tbsp vinegar
1/2 tsp baking soda
2 tsp vanilla
8 Milky Way Bars (1 1/2 oz) or 6 Milky Way Bars (2 oz) or 5 1/2 Milky Way bars (2.24 oz)
2 sticks of butter
2 cups sugar
4 eggs
2 1/2 cups sifted flour
1/2 cup chopped walnuts, optional

Preparation

Make sour milk: 1 cup milk, 1 tbsp vinegar, 1/2 tsp baking soda, 2 tsp vanilla.