Use softened butter: Softened butter mixes more easily with the coconut palm sugar and helps create a smoother cookie dough.
Measure the oat flour carefully: Too much oat flour can make the cookies dry, so spoon it into the measuring cup and level it off.
Do not overbake: Pull the cookies when the edges are lightly golden and the centers look just set. They will continue to firm up as they cool.
Let them cool on the baking sheet: Oat flour cookies are soft when they first come out of the oven, so let them sit for a few minutes before moving them.
Use certified gluten-free oat flour if needed: Oats can be cross-contaminated with wheat, so certified gluten-free oat flour is best for a fully gluten-free cookie.