Jamie's easy apple crumble recipe, with sweet warm apples and golden crumb topping, makes the perfect dessert - and is even better served with custard! Talking about mental health made me feel better. This is Unexpected Rhubarb, Ginger, Raspberry and Apple Crumble -Oats, flour, sugar, MILD olive oil. fork, oven-proof dish deep enough for a decent crumble-fruit ratio. 1 apple, grated; 1 tablespoon natural set low-fat plain yogurt; 1⁄2 teaspoon extra Lightly spray cake tin (round or square medium size) with spray vegetable oil. Combine in a small separate bowl yogurt and olive oil, then add to dry ingredients. pinches of flour, however the crumble effect will still happen after cooked).