Preheat oven to 325 F. Line a 8x8 pan with parchment paper and spray.
In a medium bowl whisk together flour, cocoa powder, salt and baking powder. Set aside.
In another medium bowl mix together oil, both sugars, eggs and vanilla until light and smooth. Whisk in dry ingredients.
Fold in chocolate chips if using them. Pour batter into prepared pan and smooth the top.
Bake for 25-30 minutes or until a toothpick inserted in the middle comes out clean. Sprinkle with flaked sea salt. Allow brownies to cool completely before serving.
Notes
I have given both cups and grams as measurements. Grams will be more precise, especially when measuring flour. If you don’t have a kitchen scale, no problem! Just lightly spoon flour into your measuring cup to insure its not packed in there. Light and fluffy is the key.You can also make these gluten free by using a GF flour. Cup4cup is my favorite one to use.To get a clean cut on brownies use a plastic knife.