Ingredients:
1 cup bourbon
1 cup (2 sticks) unsalted butter
3/4 cup unsweetened cocoa powder
2 cups flour
2 cups sugar
1 1/2 teaspoon baking soda
3/4 teaspoon salt
2 large eggs
2/3 cup sour cream
Directions:
Preheat oven to 350 degrees. Line two muffin pans with paper liners.
Bring the bourbon and butter to a simmer in heavy large saucepan over medium heat. Add cocoa powder and whisk until mixture is smooth. Cool slightly.
Whisk flour, sugar, baking soda, and salt in large bowl to blend. Using electric mixer, beat eggs and sour cream in another large bowl to blend. Add bourbon-chocolate mixture to egg mixture and beat just to combine. Add flour mixture and beat briefly on slow speed. Using rubber spatula, fold batter until completely combined.
Fill cupcake liners 3/4 full and bake 20-25 minutes, until toothpick inserted into the center comes out clean.
Carmel Frosting (Ina Garten's Carmel Sauce)
1 1/2 cups sugar
1/3 cup water
1 1/4 cup heavy cream
1 1/2 teaspoon pure vanilla extract
1 cup butter (2 sticks softened)
5 cups confectioners sugar
coarse sea salt
Mix the water and sugar in a medium heavy-bottomed saucepan. Cook over low heat for 5 to 10 minutes, until the sugar dissolves. Do not stir. Increase the heat to medium and boil uncovered until the sugar turns to a warm chestnut brown (about 350 degrees on a candy thermometer), about 5 to 7 minutes, gently swirling the pan to stir the mixture. Be careful - the mixture is extremely hot! Watch the mixture very carefully at the end, as it will go from caramel to burnt very quickly. Turn off the heat. Stand back to avoid splattering and slowly add the cream and 1/2 tsp of vanilla. The cream will bubble violently and the caramel will solidfy.
Simmer over low heat, stirring constantly, until the caramel dissolves and the sauce is smooth, about 2 minutes. Allow to cool to room temperature, at least 4 hours. It will thicken as it sits.
In a mixing bowl, cream the butter. Beat in the sugar and 1 tsp vanilla. Mix in 1/4 cup of the caramel sauce. If the frosting is too thin, add some flour to thicken.
Pipe onto cupcakes and use remaining caramel to drizzle on top. Sprinkle lightly with sea salt.
(If not eaten the same day, sea salt will take on a stronger flavor. Wait to add just prior to serving.)