In a large mixing bowl, blend the shredded cheese, gluten free flour, salt, garlic powder, and butter with a fork or pastry blender. Then, add 1 Tbsp. of water at a time, until a dough is formed. Split the dough into two pieces. Next, wrap and refrigerate for at least 30 minutes.
Preheat the oven to 375 degrees.
Remove the dough from the fridge and allow to sit at room temp for a few minutes. Then, use a rolling pin to roll the dough between two sheets of parchment paper. You want to create a thin, rectangular shape. Use a pizza cutter or a knife to cut into squares. Next, create a small hole in the center of each square.
Carefully place squares of dough on a parchment lined baking sheet. Sprinkle with salt. Finally, bake for 14-16 minutes.