The main secret is NOT to twist your biscuit cutter when cutting out the biscuits. My recipe for the best biscuits is: 1 cup self rising flour, 1 Tbsp. baking powder, 1 cup cream (not milk).
Mix into soft dough. Knead 5-7 times on floured surface. Pat or roll out to about 1/2" thickness. Place on baking sheet & bake at 450F for 8-12 min. until lightly browned.