Nadiya's all-American traybake is made with peanut butter and jam. Serve with an extra dollop of jam, some Greek-style yoghurt and fresh raspberries on the side. You will need a brownie tin about ...

Equipment and preparation: for this recipe you will need a 30x23cm/12x9in tray bake tin. Each serving provides 290 kcal, 4g protein, 38.5g carbohydrates (of which 25g sugars), 13.5g fat (of which ...