I make several when days are long and temperatures are high and this is my go-to recipe for 2026. Make it your own by using any combination of fruit or even a single berry and adjust their sweetness to your liking. I enhance the filling with a splash of Crème de Cassis, a liqueur that brings out the best in almost any berry. Make the berry filling: Whisk the cornstarch and 3 tablespoons of sugar to blend in a medium bowl. Prepare the topping: Add the flour, sugar, baking powder, and salt to a food processor and pulse to combine them well.