For the Cakes:
- 1 cup butter, cut into small pieces
- 1 cup dark chocolate chips
- ½ cup cocoa powder
- 2 Tbsp. freshly brewed espresso
- 2 Tbsp. hot water
- 6 eggs
- 1 cup granulated sugar
- 2 Tbsp. rum
- Preheat oven to 325°F. Grease muffin tin (capacity of 12).
- Combine butter and chocolate chips in a glass bowl and microwave on high for 60 seconds. Stir until smooth. If not melted completely, return to microwave for 15-second intervals, stirring between each until melted. Set aside.
- Combine cocoa powder, espresso, and water in a separate bowl. Stir until smooth and set aside.
- Combine eggs, sugar, and rum in a large mixing bowl, whisking thoroughly. Add cocoa-espresso mixture to egg mixture, then stir in melted chocolate mixture. Whisk until smooth and creamy.
- Pour batter into prepared muffin molds and bake until cakes puff slightly and surfaces are set, about 22-25 minutes.
- Cool, then refrigerate for at least 3 hours.
(We only had them cool for about 10 minutes and then removed from tins and cooled on a rack until the ganache was ready)
- 1 cup heavy cream
- 1 cup dark chocolate chips
- In a medium saucepan over medium heat, add heavy cream and bring to a boil.
- Remove from heat and stir in chocolate chips, whisk until smooth.
- Set a wire rack over a large bowl and, one cake at a time, place on wire rack and coat with ganache, making sure cover the sides of the cake.
(We added an extra touch of sifting powdered sugar over the tops) - Refrigerate until ready to serve.