All ovens are a bit different – check your oven temperature with an oven thermometer. If that looks right, double check you used the correct quantities for the ingredients. If you have too much butter, you’ll likely end up with a soggy, greasy topping. If you have not enough butter, you’ll end up with a dry topping. Lastly, make sure to really work the butter in with the other ingredients, you want everything to be hydrated by the butter and be able to stick together if you squeeze it in the palm of your hand.