Chocolate Chip Cookie Layer Cake

INGREDIENTS

3 cups

all-purpose flour (spoon & leveled)

2 tsp

cornstarch

1 tsp

baking soda

1 tsp

salt

1 cup

unsalted butter, softened to room temperature

1 cup

packed light or dark brown sugar

1/2 cup

granulated sugar

large eggs, at room temperature

and 1/2 teaspoons pure vanilla extract

2 cups

semi-sweet chocolate chips (I used mini), plus extra for garnish

1 cup

unsalted butter, softened to room temperature

1/2 cup

creamy peanut butter*

and 1/2 cups (420g) confectioners' sugar

1/2 cup

unsweetened natural or dutch-process cocoa powder

1 tsp

pure vanilla extract

1 tbsp

milk

salt,