These soft and chewy chocolate chip bars takes 15 minutes to prepare.

Set the oven rack in the center of the oven. Preheat the oven to 350 ° F (180 ° C). Butter a 9 in x 13 in (23 cm x 33 cm) pan
In large bowl or stand mixer, beat eggs, brown sugar, oil and vanilla on high speed for 5 Minutes.
In another bowl, whisk together flour, baking powder and salt. Stir into the egg mixture on low speed until smooth not more. Fold in the chocolate chips with a spatula or a wooden spoon.
Pour the dough into the pan, spread it with a spatula. Bake 15 to 17 minutes until a toothpick inserted in the center comes out clean. Cool 15 minutes before cutting into bars. Store immediately in an airtight plastic container.