Grease 2 8" round pans and line with parchment paper. Set aside
In a large saucepan, heat beer and butter until butter is melted. Remove from heat.
Whisk in sugar and cocoa powder until blended.
Combine eggs, sour cream and vanilla in a medium bowl. Whisk contents of medium bowl into beer mixture.
Combine flour and baking soda. Whisk into beer mixture until smooth.
Pour into prepared pans.
Bake at 350ºF/175ºC for 45-50 minutes or until a toothpick inserted in the center comes out clean. Cool for 10 minutes and remove from pan.
Calories: 1316kcal (66%) | Carbohydrates: 211g (70%) | Protein: 18g (36%) | Fat: 48g (74%) | Saturated Fat: 28g (140%) | Cholesterol: 232mg (77%) | Sodium: 914mg (38%) | Potassium: 580mg (17%) | Fiber: 10g (40%) | Sugar: 134g (149%) | Vitamin A: 1450IU (29%) | Vitamin C: 0.5mg (1%) | Calcium: 127mg (13%) | Iron: 7.7mg (43%)