Preheat the oven to 190°C/375°F/gas 5. Peel and core the apples, quarter and cut in to chunks.
Put the apples into a pan with the sugar and water. Cook over a low heat for 5 minutes and place in a small ovenproof dish.
Place the flour and oats in a bowl and mix well. Cut the butter into small cubes and add this to the oats and flour. Mix with your fingertips until it resembles an even crumb texture. Add the sugar and mix through.
Cover the fruit with the crumble mixture. Bake for approximately 20 minutes until the crumble is golden and the apple hot.
Whether it’s delicious vegetarian or vegan recipes you’re after, or ideas for gluten or dairy-free dishes, you’ll find plenty here to inspire you. For more info on how we classify our lifestyle recipes please read our special diets fact sheet, or or for more information on how to plan your meals please see our special diets guidance.