Rich, fudgy, and decadently chocolatey brownies that are moist, chewy, and perfect for any occasion.
1 cup unsalted butter
8 ounces semi-sweet chocolate, chopped
1 1/4 cups granulated sugar
3/4 cup brown sugar, packed
4 large eggs
2 teaspoons vanilla extract
1 cup all-purpose flour
1/2 cup unsweetened cocoa powder
1/2 teaspoon salt
1/2 teaspoon baking powder
1 cup chocolate chips or chunks
1/2 cup chopped walnuts or pecans (optional)
1 tablespoon espresso powder (optional)
Optional caramel, peanut butter, or espresso; underbake slightly for extra fudginess.