1 box yellow cake mix
1 1/2 lbs. Ricotta cheese
3/4 c. sugar
1 1/2 tbsp. vanilla
4 lg. eggs

Mix cake as directed. Grease and flour pan. Pour batter in 13"x9" pan. Blend other ingredients until smooth. Pour cheese mixture down center of cake batter. Do not stir. Sprinkle top with cinnamon and sugar. Bake at 350 degrees for 60 to 75 minutes. Bake until top looks golden brown. Test. Do not remove cake from pan until cool. This cake freezes well.