Ingredients

• 1 (10.25 ounce) package brownie mix
• 1 egg
• 1/4 cup vegetable oil
• 3 tablespoons coffee-flavored liqueur (such as Kahlua®)
• 2 tablespoons instant coffee granules
• 1 tablespoon water

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Instructions

1. Preheat oven to 325 degrees F (165 degrees C). Grease an 8-inch square pan.
2. Combine brownie mix, egg, vegetable oil, coffee-flavored liqueur, instant coffee, and water in a large bowl; mix with a wooden spoon until batter is evenly moistened.
3. Pour batter into the prepared pan.
4. Bake in the preheated oven until edges are set and a toothpick inserted in the center comes out with a few moist crumbs attached, about 20 minutes. Let cool for 20 to 30 minutes before cutting.