Preheat oven to 400*F, line a sheet tray with parchment.
Combine non-dairy milk, lemon juice, and vanilla extract in a small bowl or measuring cup. Place in the refrigerator until you are ready to use it.
6 tablespoon Non-Dairy Milk, 2 teaspoon Lemon Juice, 1 teaspoon Vanilla
In a large mixing bowl, combine granulated sugar and lemon zest. Rub the lemon zest into the sugar with your fingers to release to oils in the zest.
Zest of ½ of a Lemon, ½ Cup Granulated Sugar
Into the bowl with the sugar, add the flour, baking powder, baking soda and salt.
2 Cups All Purpose Flour, 2 teaspoon Baking Powder, ¼ teaspoon Baking Soda, ¼ teaspoon Salt
Into the dry ingredients add the cold cubed vegan butter. Work the vegan butter into the flour with your fingers until the mixture looks like a coarse meal.
8 tablespoon Non-Dairy Butter, cut into ¼" pieces, cold
Add the wet ingredients to the bowl and using a spatula or your hands, gently fold the mixture together. It should look shaggy, but be able to be pressed together.
Lightly flour a work surface, then dump the scone mixture out. Fold the dough onto itself a few times (if it is still shaggy) to form a more cohesive dough. Then pat the dough into a 6x9-inch rectangle. See note.
Add the blueberries on top of the dough rectangle and gently press them into the dough, then roll the dough toward you like a cinnamon roll.
1 Cup Fresh Blueberries
Then press the rolled scone dough back out into a 9x5 rectangle. Using a sharp knife, cut the dough in half longways, then make 3 cuts width-wise, yielding 8 scones.
Transfer the scones to a parchment-lined baking sheet, spacing them evenly. Sprinkle the tops of the scones with some turbinado sugar and bake in a 400* for 19-21 minutes or until the bottom of each scone is brown all the way across.
Turbinado Sugar for Sprinkling
Serve warm.