Follow box directions to make batter for a yellow cake.
Pour into pan, but do NOT bake.
Combine:
2 lb whole ricotta (4 cups)
3/4 c sugar
4 eggs
1 tsp vanilla
Mix until smooth.
Pour evenly over batter.
Bake @ 350, 45 min- 1 hour.
It's done when a toothpick inserted in center
comes out clean.
Cool.
Keep refrigerated.
Dust with confectioners sugar when serving.
Eat chilled.
NOTE: the ricotta layer sinks to the bottom.