1cupchocolate chipsdark chocolate or semi-sweet chocolate
Instructions
Preheat your oven to 325 degrees Fahrenheit.
Line an 8 x 8 inch metal pan with non-stick aluminum foil or parchment paper, and grease with butter or non-stick cooking spray.
Place butter and sugar in a microwave safe bowl and heat for approximately 1 minute, until butter is melted, then stir.
Stir in the eggs, egg yolk, vanilla and vegetable oil. Mix in the cocoa powder until thoroughly combined.
Stir in the flour, baking soda, cornstarch and salt just until combined. Gently mix in the chocolate chips.
Spread brownie batter into your lined pan; batter will be very thick. Bake for 25-30 minutes, until toothpick inserted in center comes out with a few crumbs attached. Do not overtake Cool on a wire rack for 2 hours before cutting.
Notes
You can double the recipe and bake in a 9 x 13 pan for approximately 30 minutes.
Store brownies in an airtight container for up to 3 days. No need to refrigerate.