Chocolate Guinness Cupcakes

Directions

1. 1
   Pre-heat oven to 350 degrees.
2. 2
   Grease a 9-inch springform pan and line with parchment paper.
3. 3
   In a large saucepan, combine Guinness and butter.
4. 4
   Place over medium-low heat until butter melts, then remove from heat. Add cocoa and sugar, and whisk to blend.
5. 5
   In a small bowl, combine sour cream, eggs and vanilla; mix well.
6. 6
   Add to Guinness mixture. Add flour and baking soda, and whisk again until smooth.
7. 7
   Pour into buttered pan, and bake until risen and firm, 45 minutes to one hour. Place pan on a wire rack and cool completely in pan.