Tres Leches Cake

1. Preheat oven to 350 degrees F (175 degrees C). Grease and flour one 9x13 inch baking pan. 2. Sift flour and baking powder together and set aside. 3. Cream butter or margarine and the 1 cup sugar together until fluffy. Add eggs and the 1/2 teaspoon vanilla extract; beat well. 4. Add the flour mixture to the butter mixture 2 tablespoons at a time; mix until well blended. Pour batter into prepared pan. 5. Bake at 350 degrees F (175 degrees C) for 30 minutes. Pierce cake several times with a fork. 6. Combine the whole milk, condensed milk, and evaporated milk together. Pour over the top of the cooled cake. 7. Whip whipping cream, the remaining 1 cup of the sugar, and the remaining 1 teaspoon vanilla together until thick. Spread over the top of cake. Be sure and keep cake refrigerated. Let the cake sit in the refrigerator to allow the milks to soak in.