Chocolate Guinness Tarts

I came across this recipe while I was doing some reading on a beer web site. My first thought was 'beer, chocolate, pastry...everybody wins!' I made them this past weekend, and they didn't disappoint. The Guinness taste didn't really come through as much as I expected, but dark chocolate has a very powerful taste of its own, and you're only using 1/2 a cup of the beer. However, stout and chocolate compliment each other very well, so this combination makes total sense. What I would suggest for future servings, and I will be making these again, is to serve at a party, place the tarts on a big plate, and have a small cups of Guinness sitting next to it, so your friends can help themselves to a rich and tasty dessert.

CHOCOLATE GUINNESS TARTS

45 mini sweet fillo shells (found in the frozen food section)
Two 3.5oz good quality dark chocolate (min 70% cocoa solids)
7 tablespoons unsalted butter
3 egg yolks
1 whole egg
1/4 cup sugar
1/2 cup Guinness

Bring a pan of water to a gentle simmer and sit a heatproof bowl over the top - not allowing the water to come into contact with the bottom of the bowl. Break the chocolate into the bowl and add the butter and the beer. While the chocolate mixture is melting, whisk the eggs and the sugar until pale and smooth. When the chocolate has melted, stir the bowl to amalgamate the other ingredients, and then pour into the egg and sugar mixture. Stir well and pour into the shells. Bake in a pre-heated 425ºF oven for 4 minutes. Refrigerate overnight and serve.