BROWNIE:
4 ounces unsweetened chocolate, finely chopped
1 cup butter, at room temperature
2 cups light brown sugar, packed
4 large eggs
2 teaspoons vanilla extract
1 cup all-purpose flour

COOKIE DOUGH (EGG FREE!):
3/4 cup butter
3/4 cup light brown sugar, packed
3/4 cup granulated white sugar
3 Tablespoons milk
1 1/2 teaspoons vanilla extract
1 1/2 cups all-purpose flour
1 1/2 cups mini chocolate chips
1/2 cup semisweet chips + 1 teaspoon shortening for drizzle, optional