Rub the butter and flour together in your fingers, till it goes like breadcrumbs.
Step 3:
Add the oats and sugar, and mix well.
Step 4:
Put the blueberries in a saucepan and put the heat on boiling setting. Use a wooden spoon to break up the blueberries and add the sugar. Once the blueberries have gone like purple syrup, add the tinned peach slices and mix well.
Step 5:
Put the peach and blueberry mixture into an oven proof dish (I aways use a casserole dish). Sprinkle the oat topping over the fruit.