01 - Preheat the oven to 375°F.
02 - In a large bowl, combine strawberries, sugar, cornstarch, lemon juice, and vanilla extract. Toss gently until strawberries are evenly coated.
03 - Pour the strawberry mixture into a 9-inch baking dish and spread into an even layer.
04 - In a separate bowl, whisk together flour, sugar, baking powder, and salt until well combined.
05 - Add cubed cold butter to the flour mixture. Use a pastry cutter or clean fingers to blend until the mixture resembles coarse crumbs with some pea-sized butter pieces remaining.
06 - Stir in milk and vanilla extract until just combined. The dough should be thick and slightly sticky. Do not overmix.
07 - Drop spoonfuls of the dough evenly over the strawberry filling, leaving small gaps for steam to escape and fruit to peek through during baking.
08 - Bake for 35 to 40 minutes, or until the topping is golden brown and the fruit filling is bubbling around the edges.
09 - Let cool for 10 to 15 minutes before serving. Serve warm with vanilla ice cream or whipped cream if desired.