... your butter comes in a 250 gram rectangular block instead of a 1/2 cup pre-measured "stick".
This is what it looks like and I have found my food scale to be a life saver here.
1 stick of butter = 4oz. So I slice it up and weigh it.
For my UK friends, this is what our "stick of butter" looks like if you see that term on my recipes from time to time :)
1 stick of butter = 8 tablespoons = 1/2 cup = 4oz. = 113g