Ingredients
Equipment
Method
Preparation
- Preheat your oven to 325°F (163°C) and prepare a 9x9-inch baking pan.
- In a medium bowl, sift together flour, cocoa powder, cornstarch, and salt.
- In a larger bowl, beat sugar, eggs, and egg yolk until pale and fluffy. Add melted butter, oil, and vanilla; stir to combine.
- Gradually mix in dry ingredients, then fold in chocolate chips.
- Spread brownie batter in the baking pan and swirl in marshmallow fluff.
- Bake for 45 to 55 minutes, checking doneness with a toothpick.
- Cool completely before cutting into squares and serving.
Nutrition
Notes
For thicker brownies, use an 8x8-inch pan or double the recipe for a 9x13-inch pan.
