Preheat the oven to 375℉/180℃. Butter a 9x9 inch baking dish.
Pour the fruit into the dish and toss with the lemon juice and sugar.
In a bowl, combine the flour, sugar and baking powder. Work in the butter using your fingertips or a pastry cutter until the butter is "pea-sized".
Use a knife to stir in the milk to form a shaggy dough.
Use a cookie scoop or tablespoon to scoop the dough onto the fruit.
Bake 45-50 minutes, until the biscuit topping is golden.
Serve warm with fresh whipped cream or vanilla ice cream!