Crab and Artichoke Souffle

Name: Crab and Artichoke Souffle
Ingredients: 1 cup (4 oz) crab meat, flaked and lightly-packed; ½ cup finely chopped cooked artichoke hearts (frozen, fresh or from a jar is OK, but please don’t use the marinated-in-oil style), Alternatively, lightly sautéed leeks would be nice here too.; 2 large egg yolks; 3 large egg whites, room temperature; ½ teaspoon salt; ¼ teaspoon cream of tartar; 1 cup (2 ½ oz) Gruyere cheese, shredded; ½ teaspoon white pepper; 1 Tablespoon butter; 1 Tablespoon flour; 1 teaspoon dried chives or tarragon; 1 cup milk; Salt and pepper to taste; Additional butter and bread crumbs for preparing the dishes