In a medium bowl combine the strawberries and caster sugar then stir to combine. Cover and leave to macerate in the fridge while you make the biscuits.
850 g strawberries, 50 g sugar
To Make the Biscuits
Preheat the oven to 200 °C (fan) and line a baking tray with baking parchment.
In a large bowl, combine the flour, sugar, baking powder, baking soda and salt then whisk to combine.
350 g plain white flour, 50 g caster sugar, 3 teaspoon baking powder, ½ teaspoon baking soda, 1 teaspoon fine sea salt
Add the vegan butter and use a pastry knife or two sharp knives to cut the butter into the flour mixture until the largest pieces of butter are the size of garden peas.
200 g vegan butter
In a measuring jug, combine the soy milk and lemon juice then whisk to combine.
180 ml soy milk + 2 tablespoon for brushing, 1 tablespoon lemon juice
Slowly add the soy milk mixture to the bowl while stirring gently with a fork until the mixture is just combined, do not over mix!
Form the dough into a rough ball, and turn out onto a lightly floured surface.
Dust the top of the dough with a little flour then roll the dough into a 35cm (14 inch) x 25cm (10 inch) rectangle, using a rolling pin.
Fold the top third of the dough over into the centre then follow with the bottom half of the dough. Fold the dough in half again from one side to make a thick square of dough (see notes in blog post for photos of this method!)
Now repeat the process again; rolling out to a 35cm (14 inch) x 25cm (10 inch) rectangle, folding down the top third then folding up the bottom third, then folding in half.
Finally, roll out the dough until it’s around 1.5 cm (½ inch) thick then use a cookie cutter to cut out 12 circles of dough, around 7.5cm (3 inch) in diameter.
Place the biscuits on the prepared baking tray and brush with the extra 2 tablespoon soy milk. Sprinkle with the extra 2 tablespoon granulated sugar and bake for 18 minutes. Meanwhile prepare the whipped cream.
2 tablespoon granulated sugar
To Make the Whipped Cream
In the bowl of a stand mixer fitted with the whisk attachment (or a medium bowl if using an electric whisk) combine the vegan whipping cream, vanilla extract and caster sugar. Whip on high speed until stiff peaks form.
Allow the biscuits to cool to room temperature before slicing in half, topping with a few tablespoons of the macerated strawberries, followed by a dollop of the vegan whipped cream. Close with the top half of the biscuit and repeat with more strawberries and more whipped cream.