To begin add Flours, Xantham Gum, Instant Yeast, Salt, and Sugar to your stand mixer and mix together.
Next, add the Butter or Coconut Oil, Egg, Apple Cider Vinegar, and Water then start mixer on low. You'll want to start slow until the everything starts to mix together, then you can increase the speed to medium-medium high. Mix for a few minutes until everything looks smooth and completely incorporated.
Prepare a 9 inch cake pan by spraying non-stick oil or spreading coconut oil, shortening, or another choice.
Divide the dough into 9 equal sections. You can use a scale to get really precise or you can eyeball it to get close enough.
Place the dough balls in the cake pan evenly spaced around with one in the center
Smooth out the surface of each roll by using wet fingers.
Let rise for 30-45 minutes. Depending on humidity, this could be more or less in your location. I use my oven with the light on only, or my microwave. If left out on the counter cover with a clean towel.
Bake in preheated 400° oven for 25-30 minutes. Keep a CLOSE eye on them. the tops of mine tend to get brown really fast. If that happens before they are done, you can loosely lay a piece of aluminum foil over them to protect the tops while the middle finishes baking. A thermometer should read 200° when they are done.