- 1 (20 ounce) box brownie mix (preferably Ghirardelli®)
- 1/2 cup vegetable oil
- 1 egg
- 1/4 cup Kahlua
- Preheat oven to 350 degrees F. Spray a 9x9x2-inch baking pan with non-stick cooking spray.
- Combine the brownie mix with the oil, egg, and Kahlua in a mixing bowl. Mix until well blended. Pour into prepared baking pan.
- Bake until top looks dry, about 30 minutes.