These bars have staying power but they’re actually a vintage recipe.

These Congo Bars are a classic treat, known for their chewy texture, rich brown sugar flavor, and abundance of chocolate chunks and chips. They are easy to make and perfect for satisfying any sweet craving.

Ingredients:

Instructions:

1. Preheat oven and prepare pan: Preheat your oven to 350°F (175°C). Line a 9×13-inch baking dish with parchment paper, leaving an overhang on the sides for easy removal. Grease the parchment paper with nonstick cooking spray. Set aside.
2. Cream butter and sugar: In a large mixing bowl, using an electric mixer on medium speed, beat together the softened butter and packed brown sugar for about 2 minutes, or until the mixture is light and creamy.
3. Add eggs and vanilla: Add the room temperature eggs one at a time, beating well after each addition until fully incorporated. Stir in the vanilla extract.
4. Add dry ingredients: Reduce the mixer speed to low. Gradually add the kosher salt, baking powder, and all-purpose flour to the wet ingredients. Mix until just combined; be careful not to overmix.
5. Stir in chocolate: Stir in the semi-sweet chocolate chunks and milk chocolate chips until they are evenly distributed throughout the batter.
6. Transfer to pan: Transfer the cookie dough to the prepared baking dish. Use a rubber spatula to spread the dough evenly in the pan.
7. Bake: Bake in the preheated oven for about 30 minutes, or until the edges of the bars are set and lightly golden brown. The center may still appear slightly underbaked and gooey, which is characteristic of Congo Bars.
8. Cool: Let the Congo Bars cool in the baking pan for at least 5 minutes before attempting to remove them. Using the parchment paper overhang, carefully lift the bars out of the pan and place them on a wire rack to cool completely.
9. Slice and serve: Once the Congo Bars are completely cool, slice them into squares or rectangles and serve. Enjoy these chewy and chocolatey treats!