In a mixing bowl, combine flour, sugar, baking powder and salt.
Add the diced vegan butter and rub it in, using a fork, pastry cutter or hands, until no large lumps of butter remain.
Now add the soy milk, lemon juice and zest. Mix with the dry ingredients to form a loose, soft and sticky dough. Don't knead too much, just bring it together.
Fold the blueberries into the dough to distribute them evenly.
Shape and bake
Tip the dough out onto a floured board. Shape it into a round about 8 inches (20cm) wide and just under 1 inch (2 - 2.5 cm) tall.TIP: To keep the dough from sticking to your hands, lightly dust the dough by turning it over on the floured surface, or dust your hands in flour.
Brush the round dough with soy milk and sprinkle on the extra sugar.
Use a sharp knife to slice the dough into wedges. Transfer them to a lined baking sheet.TIP: To reduce spreading (and especially if the dough has warmed up whilst you worked) chill the unbaked scones in the fridge for 15 minutes.
Bake at 200°C (390°F) for 18 minutes, until the tops of the scones are golden brown. Briefly let the scones cool down, then transfer to a cooling rack.
Notes
Dice your cold vegan butter straight from the fridge, or grate it directly from frozen. If you use frozen blueberries, then don't thaw them.You'll find step by step pictures, expert tips and variation ideas in the post above.