Orange Liqueur Soufflé

This soufflé is so memorable it just has to be the star of the meal. So make something very good but simple beforehand, perhaps half a perfect cantaloupe or Galia melon filled with a few raspberries, followed by grilled salmon with the best new potatoes you can buy and a lovely green salad scattered with toasted pine kernels. The soufflé can be prepared in stages, reducing the workload right before dinner. The sauce base can be made earlier in the day. Once the egg whites have been added, t