2 ¼cupsall-purpose flour,fluffed, spooned and leveled
¼cupcorn starch
4tspbaking powder
1 ¼tspcoarse Kosher salt(if using table salt, use half the amount)
1tspcoarse ground black pepper
10tbspvery cold, unsalted butter,cut into tablespoons
1cupfreshly grated Parmesan cheese,divided
¾cup + 2 tbspvery cold whole milk
1large egg
2tbspwater
Instructions
In a bowl, combine the flour, corn starch, baking powder, salt, and pepper. Use a pastry cutter to cut in the butter until crumbly.
Grate 1/2 cup of Parmesan cheese over the flour mixture, and stir it in. (Don't pack the grated cheese into a measuring cup, or you'll end up with too much. Just estimate the amount as you grate it over the dough, and you'll be fine.)
Stir in the milk just until moistened and use your hands to gather the mixture up into a craggy dough that sticks together, but don’t overwork the dough. If necessary, add 1-2 more tablespoons of milk.
Line a baking sheet with parchment baking paper. Grate 1/4 cup of Parmesan cheese directly onto the paper.
Use a large cookie scoop/cupcake scoop with a release lever (or just a spoon) to portion out 12 biscuits, placing them close together, on top of the grated cheese.
Whisk together the egg and water to make an egg wash, and lightly brush the egg wash over the biscuits. Grate the remaining 1/4 cup of Parmesan over the biscuits.
Freeze the biscuits for 30 minutes.
While the biscuits are freezing, preheat the oven to 450 F and position a rack in the center of the oven.
Bake the biscuits until the cheese is crisp and golden brown, about 18-20 minutes.
Cool biscuits for 5 minutes, then serve hot with honey.
Video
Notes
Biscuits are best served fresh, on the morning they're made. But leftovers are still great, and the best way to reheat them is to lightly toast them in a convection oven until warm, or to microwave them briefly at 50% power.
Unbaked biscuits can be frozen for up to 3-6 months. You can bake them straight from the freezer, and just add about 4-5 minutes to the baking time.