Preheat oven to 400°.
Place a sheet of parchment paper on your kitchen counter and dust a small amount of gluten free flour over the parchment paper.
Over a large mixing bowl, sift together gluten free flour, baking powder, and salt.
Add the room temperature butter to the biscuit flour and work the butter into the flour using a fork or hands until you see small pea-sized pieces of butter throughout the flour.
Add the buttermilk and mix until all ingredients are combined and a ball of dough can be easily formed. (Do not over mix the dough because this creates tough biscuits.)
Place dough onto the gluten free floured parchment paper and roll or press dough until it is 1 to 1-1/2 inches thick.
Using a biscuit cutter, cut out as many biscuits as you can and then re-work the dough and roll/ press out again until you have cut out 6 to 8 biscuits.
Melt 3 tablespoons of butter in a shallow bowl and dip both sides of each biscuit into the butter.
Transfer the butter dipped biscuits to a small baking pan or small cake pan.
Place biscuits tightly together in the baking pan so they are side by side. You do not want space between each biscuit.This allows the biscuits to rise up when baking and not flatten.
Create a foil snake if needed to press against the outer biscuits. (Space left in the baking pan will cause the biscuits to spread out and flatten.)
Place the biscuits in the oven and bake them for 15-20 minutes or until golden brown.