Preheat the oven and set it to 450 degrees.
Add carbquik, sugar, baking powder, and xanthan gum (to taste) in a food processor. Spin to combine thoroughly.
Take 4 tablespoons of chilled butter, chop it, and add it to the flour mixture.
Grind for five to ten minutes till it appears like granular breadcrumbs with a few pea-sized fragments.
Finally, drop the heavy cream in an equal arc around the edge of the blade.
Repeat approximately five to ten pulses, or until the mixture seems like rough dough.
If it appears dry, consider adding one or two more teaspoons. Avoid allowing the processor to work continuously.
Lay the dough onto a surface covered very lightly with flour and gently form it into a rectangle that is approximately one inch thick.
Following that, divide the dough into 8 biscuits (or, you may give a square shape to avoid wastage). If you are capable, cut extra biscuits and gently press the extra dough into a smaller rectangle.
The biscuits need to be baked on a baking sheet that has been oiled.
Maintain the temperature at 450 degrees for around 8 to 10 minutes. You may give them extra time; they are golden.
Serve right away and enjoy!