Rhubarb Buckle with Lemon amp Brown Sugar: Buckles are bottom-crusted, crumb-topped, baked-fruit desserts. Here, a brown sugar topping melts into the lemony rhubarb, for a perfect sweet-tart balance. Fruit Recipes, Dessert Recipes, Easy Rhubarb Recipes, Ruhbarb Recipes, Strawberry Rhubarb Recipes, Kitchen Recipes, Recipies, Rhubarb Cake, Rhubarb Crumble