Fathead dough predominately for several reasons: -It contains a significant amount of shredded mozzarella cheese. When heated, the cheese melts and can make the dough sticky. -The moisture content in almond flour or coconut flour (common ingredients in fathead dough) can vary between brands. If you're using almond flour or coconut flour with higher moisture content, it can lead to stickier dough. -If the melted cheese is too hot when you mix it with other ingredients, it can make the dough stickier. It's a good idea to let the melted cheese cool slightly before adding other components. -You hands are too dry and the flour is sticking to them. In this case grease your hands a bit to make dough less likely to stick.