Preheat oven to 325 degrees Fahrenheit (160 degrees Celsius).

Put filling ingredients into a food processor fitted with S blade and process until finely chopped. Set aside.

Beat egg whites in a clean, dry bowl, gradually adding the sugar until soft peaks form. Add the egg yolks slowly. Drizzle in the oil.

In a separate bowl, combine the flours, pudding mix, baking powder, and cinnamon. Reduce speed of mixer to lowest setting and gradually add dry ingredients. Mix until dry ingredients are just incorporated into the batter.

Grease Bundt pan and place it on baking sheet. Pour batter into pan until 1/3 full. Sprinkle the chopped pecan mixture on top of the batter in the pan and cover with the remaining batter, until batter reaches about 3/4 of the way to the top of the pan. If you have more batter left, pour into muffin tins and bake separately.

Bake for 45 minutes, until the cake is nice and golden and a toothpick inserted in the center comes out clean. Allow to cool for 10 minutes. Place a flat serving plate over it and flip over. Carefully release the cake from the pan.

Pour maple syrup over the cake while it’s still warm. Slice and serve immediately. Alternatively, if the cake has cooled completely, pour hot maple syrup over it.