Strawberry Shortcake Trifle

INGREDIENTS

Nonstick baking spray, for the parchment

1 1/2 cups

all-purpose flour

3 tbsp

cornstarch

1 tsp

baking soda

1/2 tsp

kosher salt

1 1/2 cups

granulated sugar

9 tbsp

plus 1 tablespoon) unsalted butter, at room temperature

large eggs, at room temperature

1/2 cup

sour cream, at room temperature

1 tsp

vanilla extract

strawberries, halved

Fresh mint leaves, for serving

1 1/2 cups

granulated sugar

3 tbsp

cornstarch

1 3.5 ounce package

strawberry-flavored gelatin

2 1/2 lb

fresh strawberries, hulled and halved

1 1/2 cups

plain Greek yogurt

1 1/2 cups

cold heavy cream

3/4 cup

granulated sugar

3 tbsp

brown sugar