Macerate the Strawberries: In a bowl, combine sliced strawberries, sugar, and lemon juice. Toss gently and let sit for 20–30 minutes until juicy.
Make the Biscuit Dough: Preheat oven to 400°F (200°C). In a large bowl, whisk flour, sugar, baking powder, and salt. Cut in the cold butter until the mixture resembles coarse crumbs. Stir in cream and vanilla just until combined.
Shape and Bake: Turn dough onto a floured surface. Pat into a 1-inch thick round and cut out biscuits. Place on a parchment-lined baking sheet, brush with cream, and sprinkle with sugar. Bake 14–16 minutes until golden brown. Cool on a wire rack.
Whip the Cream: In a chilled bowl, beat heavy cream, powdered sugar, and vanilla until soft peaks form. Chill until ready to use.
Assemble the Shortcakes: Slice biscuits in half. Spoon macerated strawberries with syrup onto the bottom half, add whipped cream, then top with the biscuit lid. Finish with more strawberries and cream.