Preheat oven to 400°F. Set aside 2 baking sheets with parchment or little grease. Mix flour, sugar, baking powder, soda, and salt in a large bowl.
Step 1
INSTRUCTIONS
Use a pastry blender to cut butter into coarse meal. Add cinnamon and apple pieces. Do not overwork dough.
Step 2
Add 1 1/4 cups buttermilk. Once incorporated, the dough sticks together. Dough too dry? Add remaining buttermilk.
Step 3
Place the dough on a lightly floured surface. Pat or roll the dough into two 6-inch, 1-1/2-inch rounds. Each circle should be split in half and then into three triangles. On baking sheets.
Step 4
Combine beaten egg and milk. Brush egg wash on triangle tops. Dust with cinnamon sugar. Bake till golden brown and hard, 25–30 minutes. Serve now.