In a large bowl, cream the sugar and butter. Add in the eggs and stir until combined.
In a separate mixing bowl, combine the flour, baking powder, and salt. Pour the dry ingredients into the butter mixture. Stir in the bag of chocolate chips.
Lightly grease a 13x9 pan with shortening, then dust it with flour. Press dough into the pan using a spatula.
Bake for 25-30 minutes at 325 degrees. Test the center with a toothpick. The dough should still be soft in the center. Allow the bars to cool before serving.
Recipe by Saving Cent by Cent at https://savingcentbycent.com/congo-bars/