01 - Preheat the oven to 375°F (190°C).
02 - In a large bowl, combine strawberries, sugar, cornstarch, lemon juice, and vanilla extract. Toss gently until the strawberries are evenly coated.
03 - Pour the strawberry mixture into a 9-inch (23-cm) baking dish and spread evenly.
04 - In another bowl, whisk together flour, sugar, baking powder, and salt.
05 - Add cubed butter and use a pastry cutter or your fingers to blend until the mixture resembles coarse crumbs.
06 - Stir in the milk and vanilla extract until just combined; do not overmix.
07 - Drop spoonfuls of the batter evenly over the strawberries, leaving some gaps for fruit to peek through.
08 - Bake for 35–40 minutes, or until the topping is golden and the strawberries are bubbling.
09 - Let cool slightly before serving. Add a scoop of vanilla ice cream or a dollop of whipped cream, if desired.