Set your oven to 415°F (213°C) and line a baking sheet with parchment paper.
In a bowl, sift together flour, baking powder, sugar, cream of tartar, and salt to aerate the flour for a lighter texture.
Use a pastry cutter, fork, or hands to work in cold, cubed butter until the mixture resembles coarse crumbs. This step creates flaky layers.
Stir in the milk with a fork until a slightly sticky dough forms. Avoid overmixing to keep the biscuits tender.
Turn the dough onto a floured surface, knead gently 3-4 times, then roll to ½-inch thickness.
Use a 3-inch cutter or knife to shape biscuits. Re-roll scraps and repeat.
Arrange on the baking sheet with slight spacing and bake for 10-12 minutes until golden brown.
Brush with melted butter and enjoy with honey, butter, or your favorite meal.