More often than not, your bake hasn’t failed because you somehow mismeasured the flour by 0.005 grams, but because you’ve chosen the wrong baking tin. Though it may sound surprising that ...

Preheat your oven to 160ºC. Line a nine-inch square baking tin with parchment. Carefully chop the pecan nuts and the peanuts. They do not need to be chopped too small just into rough pieces.