Combine whole wheat flour, baking powder, and salt in a bowl.
Dice the cold butter and use your hands to mix it in until the mixture resembles coarse crumbs.
Add milk and honey, and gently knead into a dough.
Shape the dough into triangles and place them on a baking sheet.
Bake in a 180°C oven for 20–25 minutes.
Cool on a wire rack.