01 - Preheat the oven to 375°F.
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 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 your fingers to blend until the mixture resembles coarse crumbs.
06 - Stir in the milk and vanilla extract until just combined. Do not overmix as this will result in a tough topping.
07 - Drop spoonfuls of the batter evenly over the strawberries, leaving some gaps for the fruit to peek through during baking.
08 - Bake for 35 to 40 minutes, or until the topping is golden brown and the strawberry filling is bubbling around the edges.
09 - Let cool for at least 10 minutes before serving. Top with vanilla ice cream or whipped cream if desired.