Arrange nectarines in 1 1/2 quart casserole. Sprinkle with 1/2 cup granulated sugar mixed with flour. Beat eggs until thick; then, beat in remaining granulated sugar and salt. Stir in nuts and vanilla and spoon over nectaines. Bake at 375 for 30-35 minutes until topping is browned. Sprinkle with confectioner’s sugar.