Dark Chocolate Chunk and Peanut Butter Chip Chocolate Cookies

INGREDIENTS

large egg

3/4 cup

creamy peanut butter (do not use homemade or natural peanut butter; it’s too runny and cookies could spread)

1/2 cup

unsalted butter, softened

1/2 cup

light brown sugar, packed

1/4 cup

granulated sugar

1 tbsp

vanilla extract

1 1/4 cups

all-purpose flour

1/2 cup

unsweetened natural or Dutch-process cocoa powder (I used Trader Joe’s)

2 tsp

cornstarch

1 tsp

baking soda

salt, optional and to taste

4 oz

dark chocolate, chopped (1/2 cup semi-sweet chocolate chips may be substituted)

1/2 cup

peanut butter chips