Fresh Lemon Pastry Cream
Combine the remaining 2 cups cream, lemon juice and sugar in a large heavy-bottomed saucepan over medium heat. Whisk to dissolve the sugar and bring to a gentle boil, about 10 minutes. Slowly add the egg yolk mixture, whisking constantly until it thickens, about 5 minutes. Be forewarned: the mixture will break. Don't be alarmed. Pour it into a glass bowl. Press a piece of plastic wrap directly on the surface of the mixture to prevent a skin from forming. Let cool completely at room temperature.
This recipe yields about 3 1/2 cups.