Ingredients
Yield: 12 thick cookies
Prep Time: 15 minutes
Cook Time: 11 to 12 minutes
Total Time: about 30 minutes
1/2 cup unsalted butter, softened (1 stick)
heaping 1/3 cup Nutella (stir well before adding)
1/2 cup light brown sugar, packed
1/4 cup granulated sugar
1 large egg
2 teaspoons vanilla extract
1 3/4 cups all-purpose flour
2 teaspoons cornstarch
1 teaspoon baking soda
pinch salt, optional and to taste
1 cup semi-sweet chocolate chips
12 1/4-ounce chunks dark chocolate, divided (one chunk per cookie; I used Trader Joe's 72% Pound Plus bar and 1/4-ounce is half of one square)
Preparation