Blackberry & Apple Crumble with gluten-free vegan oat topping.; All you need is fruit (in this recipe I am using blackberries and apples) and a crumbly, rustic You can easily find them in health food stores and supermarkets though (fresh or frozen). . 12 Homemade Edible Gifts Ideas (ethical, vegan & gluten free). This grain-free fruit crumble recipe is a guaranteed winner! ⅔ cup brown rice flour; ⅔ cup gluten-free rolled oats; ½ cup sliced or slivered almonds; ½ cup raw. Learn how to make a crumble with any fruit in 3 easy steps. To make a crisp: Add 1/2 cup of old-fashioned rolled oats or 1/2 cup chopped Missing: edibles.