Preheat oven to 350 degrees F.
Process dry ingredients in a bowl, add cubed butter and cut into flour until mealy texture set aside in cooler.
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
Recipe courtesy of Brad Breakell, owner of Pizzalchik in Boise, ID.