01 - Preheat the oven to 425°F. Line a baking sheet with parchment paper.
02 - In a large bowl, whisk together flour, sugar, baking powder, and salt until well combined.
03 - Cut in the cold butter using a pastry blender or two knives until the mixture resembles coarse crumbs.
04 - Stir in milk and vanilla extract until just combined. Do not overmix to ensure tender shortcake.
05 - Drop spoonfuls of dough onto the prepared baking sheet to form 8 biscuits. Bake for 15-18 minutes or until golden brown on top. Cool completely, then cut into 1-inch pieces.
06 - Combine sliced strawberries with sugar and lemon juice in a bowl. Let stand for at least 20 minutes, stirring occasionally, to release natural juices.
07 - In a chilled bowl, whip the heavy cream with powdered sugar and vanilla extract using an electric mixer or whisk until soft peaks form.
08 - In a large trifle bowl or individual dessert glasses, place half of the shortcake pieces as the bottom layer.
09 - Spread half of the macerated strawberries and their juices evenly over the shortcake layer.
10 - Spread half of the whipped cream over the strawberry layer. Repeat the layering process with remaining shortcake, strawberries, and whipped cream.
11 - Top with a decorative layer of whipped cream and reserved strawberry slices. Refrigerate for at least 1 hour before serving to allow flavors to meld.