Chocolate Freezer Cake

Directions

1. 1
   Bake cake in 2 thin layers in 9 x 13-inch pan by directions on box.
2. 2
   Let cool on rack and then cut cakes in half to have 4 layers.
3. 3
   Mix 1/4 cup milk and 1/4 cup flour and cook well.
4. 4
   Set aside and let the mixture get cold.
5. 5
   Mix butter, Crisco, sugar and vanilla.
6. 6
   Beat all together well, then stir in Cool Whip.
7. 7
   Put this mixture between cooled cake layers and freeze.