White Sour Milk Cake
Preheat oven to 350℉ (180℃). Sift the flour, baking powder, baking soda, and salt together into a large mixing bowl.
In another bowl, cream shortening and sugar, add well-beaten eggs, sour milk, and vanilla; mix well.
Pour liquid mixture into flour mixture, and stir until just incorporated and moistened.
Bake in a greased 8-inch (20 cm) cake pan for 20 to 25 minutes, or until a wooden skewer inserted into the center comes out clean.
Let cool in pan on wire completely. Turn cake out of the pan, cut into wedges and serve.