Overnight Apple Coffee Cake - cooking recipe

Ingredients

1/2 cup unbleached all-purpose flour
1/2 cup white whole wheat flour
1/2 cup quick-cooking oats
2 tablespoons flax seed meal
1 teaspoon baking powder
1/2 teaspoon baking soda
2 teaspoons cinnamon
1/2 teaspoon salt
1/2 cup granulated sugar
1/2 cup brown sugar, packed
1/3 cup canola oil
1 egg
3/4 cup buttermilk
2 cups apples, peeled, cored, and chopped
1/2 cup walnuts, chopped (or pecans)

Preparation

Mix flours, oats, baking powder, soda, salt, flax seed meal and 1 tsp cinnamon in a bowl and set aside.
In another bowl, mix granulated sugar, oil, 1/4 cup brown sugar and egg. Mix in buttermilk and flour mixture. Fold in apples.
Pour into a 9x13-inch greased baking pan.
For topping, combine remaining 1/4 cup brown sugar, walnuts and 1 tsp cinnamon and sprinkle over batter. Cover with foil and put in refrigerator until next morning.
Uncover and let stand about 30 minutes.
Bake 30 minutes in a 350\u00b0F oven.
Serve warm.