Do I know why these are called Congo Bars? I do not. But what I do know is that they’re an utterly irresistible thick and chewy bar loaded with two kinds of chocolate and plenty of brown sugar and butter flavor. Imagine if a blondie and a chocolate chip cookie had a baby and then you upped the chocolate a bit for good measure – you’d have these. They’re soft, they’re just gooey enough, and they’re an absolute classic.
INGREDIENTS
1 cup (2 sticks) butter, at room temperature
2 cups brown sugar, packed
3 large eggs, at room temperature
1 tablespoon vanilla extract
1 teaspoon Kosher salt
2 teaspoons baking powder
2 1/2 cups all-purpose flour
1 1/2 cups semi-sweet chocolate chunks
1 cup milk chocolate chips