| Butter and flour an 8x8-in pan | |||||
| Preheat oven to 350°F (170°C) | |||||
| 4 oz unsalted butter | melt | mix | mix | fold in | bake 350°F (170°C) 30 to 40 min |
| 1 cup sugar | |||||
| 1/4 tsp. vanilla extract | |||||
| 1 shot (4 Tbs) fresh brewed espresso or very strong coffee | |||||
| 2 large eggs | |||||
| 1/2 cup all-purpose flour | |||||
| 1/3 cup Hershey's cocoa powder | |||||
| 1/4 tsp. baking soda | |||||
| 1/4 tsp. table salt | |||||