Preheat oven to 350 degrees F.

Topping:

Process dry ingredients in a bowl, add cubed butter and cut into flour until mealy texture set aside in cooler.

Filling:

Mix lemon juice in with the apples and add to the huckleberries and stir to combine. Add remaining ingredients and combine.

Place berry apple mixture in 1/2 sheet pan with boarder spread evenly. Put topping on top of berry apple mixture and spread evenly over berries. Press topping down well on berries. Bake for 1 hour or until brown. Check during baking for doneness. Remove from oven let cool for 20 minutes and serve with vanilla ice cream