★Ingredients
For the Base and Topping:
2 cups (250 g) all-purpose flour
1/2 cup (100 g) unsalted butter, chilled and cubed
1/2 cup (100 g) granulated sugar
1 tsp baking powder
1 pinch of salt
1 egg
For the Cream Filling:
2 cups (500 g) sour cream or Greek yogurt
1/2 cup (100 g) granulated sugar
2 eggs
1 tsp vanilla extract
1/4 cup (30 g) cornstarch
