Pro Tips: The #1 secret to flaky shortcakes is using COLD butter – straight from the fridge or even frozen. Don't overwork the dough; mix just until combined for tender biscuits. The strawberry topping is elevated by warming a spoonful of jam with lemon and vanilla and mixing it with the macerated berries – this creates an incredibly thick, flavorful syrup. For the best texture, store all components separately and assemble just before serving. Homemade whipped cream is best the day it's made.