A yellow cake with a white frosting.
From the box of A.D. from Lutz, Florida, by way of Pennsylvania in the 1940s, and originating in Ohio in the 1920s.
2 cups powdered sugar
1/2 cup butter
1 cup milk
2 Tbsp. cream of tartar
3 cups flour
1 tsp. baking soda
Bake in jelly tins.
Filling: 1 grated coconut. Use 1/2 of this. Add whites of eggs, beaten to a froth, and one cup of powdered sugar. Spread between the layers.
Mix the other half of the grated coconut with flour, Tbsp. powdered sugar, and strew thickly on top of cake.