Great desserts don’t have to be fussy to hit the spot. Case in point: this simple blueberry crumble, which allows the fruit to shine under a blanket of delicious oat-walnut topping. Even though this dessert is fit for special diets, this dish doesn’t scream "healthy," far from it. Not only is this recipe naturally gluten-free, it’s also easy to make dairy-free, too, if you substitute the butter on top with coconut oil, or skip it entirely. P.S. You’ll need a food processor to turn steel-cut oats into oat flour.