2 cups heavy cream
2 tablespoons Sugar
1 cup fromage blanc (recipe below)
1 teaspoon Grand Marnier
  Grated zest of 1/2 orange
1 cup unsalted butter
1 cup confectioner's sugar
3 hard-boiled egg yolks
1 cup unbleached all-purpose flour
  Grated zest of 1/2 orange
4 stalks rhubarb
1 1/2 cups champagne
1/2 cup fresh orange juice
1/4 cup Sugar
1/4 cup Grand Marnier