I was asked to make an Anniversary cake (Poker Chip Cake) and they wanted me to make Beer Buttercream Frosting. I honestly had never heard of it, so I went in search of a recipe (I cut this recipe in half). This recipe calls for:
First, you need to reduce the beer by boiling it under low heat. This recipe stated 10-15 minutes, but it took me a lot longer (maybe I didn't have the heat high enough?). Once that is done, you will be left with about 2 tablespoons of a syrupy liquid (see below). Set it aside to cool.
Next, cream the butter in a mixer for about a minute. Start adding the powdered sugar, a little at a time, alternating with a little milk to keep it creamy.
Add the scraped vanilla bean (I left this part out) and vanilla extract.
Slowly add the reduced beer a little at a time. Taste test to the desired strength. I ended up using all of it.
I have to say, I was a little curious wondering what the result was going to be. I personally don't like beer, but I was shocked how good this tasted. It's hard to describe, but it has a really nice flavor to it....goes VERY nicely with chocolate cake too!!