In a large bowl, whisk together the 1 ½ cups whole wheat flour, ½ cup almond flour , ½ teaspoon fine sea salt, ½ cup granulated sugar, and 1 tablespoon baking powder. Work in the 6 tablespoons unsalted butter with your hands until crumbles form.
In a small bowl, whisk together the 2 large eggs, ⅓ cup plain yogurt, and 1 lemon zest. Add this mixture to the dry ingredients and stir just until combined. Gently tir in the 1 cup blueberries. The dough will be very wet. To make it more workable, place the bowl of dough in the fridge for about 20-30 minutes.
When the dough has firmed up a bit, place a piece of parchment on the counter, sprinkle it with oat flour, then take the dough out of the bowl and place it on the paper. Pat it into a 1" thick circle and cut into it 8 triangular scones. Place on the prepared baking sheet, then place the baking sheet in the freezer for 30 minutes.
Preheat the oven to 375°F. Bake for 20 minutes, or until lightly browned and a toothpick or cake tester inserted into a scone comes out dry. Cool completely on a rack.
Notes
Freeze the dough first: Don't skip the step of placing the dough in the freezer. This allows the butter to chill, and will result in those ultra-flaky layers.
Use all-purpose flour: Don't have whole wheat flour? No problem. Just use regular all-purpose flour.
Switch up the sugar: Try maple syrup, brown sugar, or coconut sugar for a different flavor note.
Add nuts: For a little crunch, fold in ¼ cup of chopped walnuts or pecans along with the blueberries.
Try other berries: Use this recipe as a base and make raspberry or blackberry scones.
Make a glaze: For extra lemony goodness, whisk 1 cup of sifted powdered sugar with the juice of ½ a lemon and drizzle it over the baked scones.
Do ahead: Make and form the dough, then place it in an airtight container or cover a baking sheet tightly with plastic, and store in the fridge for up to 24 hours before baking.