Preheat your oven to 425℉.
In a large mixing bowl, whisk together the flour, salt, and baking powder.
Add the cubed butter to the flour. Rub the butter into the flour mixture with your fingers — aim for pea-sized pieces.
Next, pour in the milk a bit at a time, using a fork to gently stir and bring the dough together. You’ll see large, soft clumps forming. Note, you might not need all of the milk.
Transfer dough to a floured surface. Pat into a rough square, cut into four, stack, and press into a square to build layers.
Repeat the cut-and-stack with your dough, then gently roll or press it into a 1-inch-thick sheet.
Use your 2¼-inch round cutter or a mason jar ring to cut out 8-10 biscuits. Arrange them close together on your baking tray or skillet.
Bake for 15 minutes, or until the tops are golden brown. Brush melted butter over the top of the biscuits and cool for a few minutes before eating.