Blackberry Cheesecake Crumble Bars

Ingredients:
· 1 box lemon cake mix
· ¼ cup vegetable oil
· 1/3 cup milk
· 4 eggs, divided
· 3 (8-ounce) packages cream cheese, softened
· 2 ½ cups powdered sugar
· 1 ½ cups fresh blackberries (if using frozen, thaw first)
· 1 tablespoon lemon zest
· 2 tablespoons lemon juice
· 1 cup brown sugar
· 1 cup flour
· ¼ cup butter, diced

Directions:
1. Preheat oven to 350 degrees.
2. Spray a 9x13-inch baking dish with cooking spray and set aside.
3. In a medium bowl, combine cake mix, oil, milk and 1 egg. Pat evenly into pan to form a crust. Bake for about 8 minutes. Let cool on the counter.
4. While crust is cooking, prepare the filling. In a medium bowl, beat cream cheese until fluffy and then add in powdered sugar. Next, add in blackberries and remaining 3 eggs and beat until smooth. Stir in lemon zest and lemon juice. Pour blackberry mixture over crust.
5. In another bowl, mix together brown sugar and flour. Mix in butter with a fork just until mixture is crumbly. Sprinkle on top of blackberry mixture.
6. Bake for 40-45 minutes or until center is set. After removing from oven, let it rest 30 minutes on the counter. Then refrigerate for at least two hours before slicing and serving. Store in refrigerator.