Ingredients:
- 18 oz brownie mix
- 1 tbsp unsweetened cocoa powder
- 1/2 cup melted unsalted butter
- 1/4 cup strong brewed coffee, room temperature
- 2 large eggs
- 1 large egg yolk
- 1/2 cup semi-sweet chocolate chips
- 1/2 tsp flaky sea salt
Instructions:
- Preheat your oven to 325°F (163°C). Line a 12-cup muffin tin with grease-proof liners and lightly mist the inside of the liners with non-stick spray.
- In a large glass mixing bowl, whisk together the melted butter, brewed coffee, two eggs, and one egg yolk until the mixture is fully emulsified.
- Sift the brownie mix and cocoa powder into the wet ingredients. Use a silicone spatula to gently fold the mixture together until just combined, being careful not to over-mix.
- Fold in the semi-sweet chocolate chips or chunks until evenly distributed.
- Using a large cookie scoop, portion the batter into the prepared muffin liners, filling each about 3/4 full.
- Bake for 20 minutes. The low temperature prevents brittle edges while allowing the center to set into a fudgy texture. Finish with a sprinkle of flaky sea salt.