Preheat the oven to 350°. Lightly coat a 9" x 13" baking pan with cooking spray.
Combine the flour, baking powder, baking soda and salt in a small bowl and set aside.
2 cup Flour, 2 teaspoon Baking Powder, 1 teaspoon Baking Soda, ½ teaspoon Salt
In a separate bowl, cream the butter and sugars together until light and fluffy. Add the eggs, one at a time, and mix to incorporate after each addition. Scrape down the sides of the bowl as needed.
½ cup Butter, ½ cup Brown Sugar, ¼ cup Granulated Sugar, 2 Egg
Mix in sour cream, vanilla, apple whiskey (optional), grated apples and unsweetened apple sauce.
2 teaspoon Vanilla, ½ cup Sour Cream, 1 cup Shredded Apple, 3 Tablespoon Apple Whiskey, ½ cup Apple Sauce
Turn the speed to low and mix in half of the flour mixture at a time. Careful not to over mix.
With a spatula mix in the roughly chopped pecans and transfer the batter to prepared pan and smooth top with a spatula.
1 cup Pecans
Crumble Topping
Combine the flour, granulated sugar, brown sugar, cinnamon and melted butter. Sprinkle crumble over the top of the batter.
1 cup Flour, ¼ cup Granulated Sugar, ¼ cup Brown Sugar, 2 teaspoon Cinnamon, ⅓ cup Melted Butter
Bake until golden, about 30 minutes or until a tooth pick inserted into the middle of the cake comes out clean.
Notes
Store in an airtight container at room temperature for 2–3 days or refrigerate up to 1 week.
To freeze, wrap slices or the whole cake tightly in plastic, then foil. Freeze up to 3 months.
Thaw overnight in the fridge; warm briefly (300°F for 5–10 minutes or 10–15 seconds in the microwave).