Brownie Bites

Name: Brownie Bites
Prep time: 45 min
Cook time: 18 min
Total time: 1 h 3 min
Cuisine: American
Ingredients: 12 Tablespoons unsalted butter cut into Tablespoon-sized pieces; ½ cup semisweet chocolate chips; ½ cup natural cocoa powder; ½ teaspoon instant coffee grounds optional; 1 cup tightly packed light or dark brown sugar; ½ cup granulated sugar; 2 large eggs + 1 large egg yolk; 1 teaspoon vanilla extract; 1 cup + 2 Tablespoons all-purpose flour; ½ teaspoon baking powder; ½ teaspoon salt; 1 cup semisweet chocolate chips; ¼ cup heavy cream; ½ Tablespoon unsalted butter; 1 teaspoon bourbon (optional); ⅛ teaspoon salt