Beat with an electric mixer until light yellow and ribbony, about 3-4 minutes. Set aside.
Heat cream just to a boil.
Beat a small amount of hot cream into egg mixture.
Continue beating in small amounts at a time until all cream is combined.
Add chocolate pieces.
Stir until chocolate is completely melted.
Pour into individual ramekins and place in a water bath.
Bake for 30 minutes.
Remove from oven and carefully remove the ramekins from the water bath.
Allow to cool.
Notes
When heating the cream, be sure to stir it often! You don't want the milk to form a skin.
If you want, you can add 1 Tablespoon or so of chocolate liqueur.
When tempering the eggs, if you pour the heated cream into the eggs too quickly and cause them to cook, don't panic! You can strain it out and still have a useable pot de crème.
Be very careful when pouring the water into the pan. You don't want to get boiling water on you or in the pot de crème!
If you have one, use a tea kettle to boil the water.
We highly recommend using the pan linked below for this recipe.