These congo bars are soft and chewy chocolate chip cookie bars with a gooey texture! This crowd-pleasing classic dessert is easy to make using only one bowl and one pan.
Preheat oven to 350°F. Grease or line a 9x13 with parchment paper. Mix together butter (slightly melted) and 2 cups brown sugar together in a large bowl. Then add in 3 eggs and 1 teaspoons vanilla and mix just until combined.
Next mix the 2 teaspoons baking powder and 1/2 teaspoon salt with 1 cup of flour. Pour into the butter mixture and stir in then add the rest of the 1 1/2 cups flour. Mix just until combined. Then fold in up to 2 cups chocolate chips.
Press dough into pan with flour on your hands. Bake for 20-25 minutes or until edges are lightly golden. The cookie bars should be soft in the center.
Allow bars to cool slightly and then slice into bars.