In a large measuring cup, sift together the flour, baking powder, baking soda, and cinnamon. Set aside

In large bowl, blend oil and sugar and then the eggs.

Add flour mixture in 3 parts, mixing on low speed. Stir in all remaining ingredients.

Divide the batter between 2 greased and floured 9-inch round cake pans, and bake the layers in the middle of a preheated 350° F. oven for 1 hour or until toothpick comes out clean.

Beat frosting ingredients until fluffy. Frost sides and top of cakes.

MJF Notes: I made 4/13/21. Used 2 jumbo 6-well muffin tins. Put leftover batter in regular cupcake tins (5 wells). 45 mins was enough time. Next time try 35-40 mins