Preheat the oven to 190C/170C Fan/Gas 5. Grease a 20cm/8in square baking tin and line it with baking paper, or use a silicone liner. Put the butter and syrup in a large microwave-safe bowl and ...

Tip the flour into the bowl and add the shortening, a pinch of salt, the margarine or butter and all of the water. Use a spoon to gently combine the ingredients. Then use your hands to crush ...