Begin by milling your wheat berries until you have 360g (about 3 cups) of fresh flour.
In a large bowl, whisk your freshly milled flour together with 1 tsp salt, 1 tbsp baking powder, and 1 tsp baking soda until everything is evenly combined.
Add 200g frozen butter (grated or cubed) to the flour mixture. If adding it cubed, use a pastry cutter to work the butter in until you have pea-sized pieces throughout, these cold butter pockets create those beautiful biscuit layers.
Stir in 40g honey (2 tablespoons) and 240g buttermilk (1 cup). Mix gently until the dough starts to come together. It should look shaggy and not fully smooth.
Cover the bowl or wrap the dough and place it in the refrigerator for at least 20 minutes, or leave it to rest up to overnight. This step helps relax the flour, firm the butter, and make shaping easier.
Transfer the chilled dough onto your floured counter. Dust the top lightly with flour so it’s easier to handle.
Pat the dough into a 1-inch-thick rectangle and fold it in half. Rotate, pat out again, and fold once more. Repeat this process 2–3 times to create flaky layers.
Pat the dough into a final 1-inch-thick rectangle or circle. Cut straight down with a biscuit cutter or glass (don’t twist). Place the biscuits on your lined baking sheet with the edges nearly touching.
Bake at 425°F (218°C) for 13–16 minutes, or until golden brown and tall.
Finish and serve.