Family Tested & Approved
12 to 24 all depends on how it is cut
Mix cake mix, oil, eggs and sour cream by hand, about 50 strokes. Put half of the batter in 9 x 13 pan.
Combine the brown sugar and cinnamon and spread over entire cake.
Spread the rest of the cake batter on top of the brown sugar mixture. Use a knife to make swirls in the cake.
Bake at 325 degrees for about 40 minutes.
Blend powdered sugar, milk and vanilla extract and carefully spread on warm cake.