Given that coconut flour varies in absorbency, you may add more flour or liquid to get the right dough consistency. To begin with, it is always wise to start with half the coconut flour and keep adding more as and when required. When too much coconut flour has been added, you can add an extra egg or any kind of liquid like maple syrup or date/ plum sauce to it. Additionally, go easy with the sweetener. Don't add too much of it right in the beginning. Start with little and then gradually add more if you like.