Prepare the Strawberries: In a medium bowl, combine the sliced strawberries, sugar, and lemon juice (if using). Stir gently and let macerate at room temperature for at least 30 minutes, or up to 2 hours, stirring occasionally.
Make the Shortcake Dough: Preheat oven to 400F (200C). In a large bowl, whisk together the flour, sugar, baking powder, and salt.
Cut in the Butter: Add the cold, cubed vegan butter to the dry ingredients. Use a pastry blender or your fingertips to cut the butter into the flour mixture until it resembles coarse crumbs.
Add Wet Ingredients: In a separate small bowl, combine the plant-based milk and vanilla extract. Pour the wet ingredients into the dry ingredients and stir until just combined. Do not overmix.
Shape the Shortcakes: Drop spoonfuls of dough (about 1/2 cup each) onto a baking sheet lined with parchment paper.
Bake the Shortcakes: Bake for 18-22 minutes, or until golden brown. Let cool on a wire rack.
Prepare the Vegan Whipped Cream: Carefully scoop out the thick coconut cream from the top of the refrigerated coconut milk cans, leaving the watery liquid behind. Place the coconut cream in a chilled bowl.
Whip the Cream: Add the powdered sugar and vanilla extract to the coconut cream. Use an electric mixer to whip the cream until light and fluffy, about 3-5 minutes.
Assemble the Shortcakes: Split each shortcake in half. Spoon a generous amount of macerated strawberries and their juices over the bottom half of each shortcake. Top with a dollop of vegan whipped cream and the top half of the shortcake. Serve immediately.
Tips and Substitutions:
For a richer shortcake, use coconut oil instead of vegan butter, but make sure it's solid.
Maple syrup or agave nectar can substitute granulated sugar in the shortcakes or macerated strawberries.
Store-bought vegan whipped topping can be used for convenience.
Nutritional Information (Approximate, per serving)