mix the oatmeal, cornstarch, water, eggs, oil, brown sugar and 1 tsp cinnamon powder
put 2 chopped apples inside the dough and last the baking powder
with the greased shape and the oven heated, put the dough in the shape and a chopped apple on top, finally take a teaspoon of cinnamon powder and put it on top of the cake
let it bake at 180° and do the toothpick test to check if it's done