Mama's Never Fail Chocolate Cake

3 cups flour
2 cups granulated sugar
2 teaspoons baking soda
1 cup cocoa
1 cup sour milk
1 cup boiling water
2 eggs
1 cup shortening
1 teaspoon vanilla extract

Add cocoa to boiling water. Add all other ingredients together in a bowl then add cocoa mixture.

Bake at 375 degrees F for about 40 minutes.

Top with your favorite chocolate frosting...really yummy.