Pour 1/2 cup of the potato cooking water over the flour and whisk it in, making sure that there are no lumps and that the batter is the consistency of thick pancake batter. (idahopotato.com)
The dough should be soft and sticky like thick pancake batter. (kimmysbakeshop.com)
You should have a batter the consistency of very thick pancake batter or muffin batter. (inerikaskitchen.com)