Cut in butter until mixture resembles coarse crumbs. Whisk in the lemon zest. Add in the milk and stir until just combined.
1/4 cup (57g) cold salted butter, 1 cup (250ml) cold milk, 1 tsp lemon zest
Drop the dough by heaping tablespoonfuls into eight mounds onto the prepared baking sheet. Bake at 425° for 12-15 minutes or until lightly browned.
While the biscuits are in the oven, stir together strawberries and sugar in a medium bowl. Let stand at room temperature until juices are released, at least 30 minutes.
Using an electric mixer, beat the cream, sugar, and vanilla until soft peaks form.
1 cup (250ml) heavy cream, 1/4 cup (50g) sugar, 1/2 tsp vanilla extract
Split biscuits in half horizontally. Spoon on some strawberries, a dollop of whipped cream, top with the other biscuit half. Garnish with more whipped cream and a strawberry if desired.
Notes
Leftover biscuits can be stored in an airtight container at room temperature for 3 days. The macerated strawberries and whipped cream can be stored covered up in the fridge for 2 days. Beat the whipped cream again for a few seconds before serving.