Apple Walnut Torte

Name: Apple Walnut Torte
Ingredients: 2 sticks unsalted butter, well softened, divided; 1 1/2 cups sugar, divided; 2 pounds tart apples such as Granny Smith, Northern Spy, or Greening, peeled, halved lengthwise, and cored; 3/4 teaspoon salt, divided; 1 1/2 cups all-purpose flour; 1 1/2 teaspoons baking powder; 1/2 teaspoon baking soda; 3/4 teaspoon ground allspice; 1/2 teaspoon cinnamon; 1/4 teaspoon grated nutmeg; 1 1/2 cups walnuts (5 ounces), coarsely chopped, toasted , and cooled completely; 2 large eggs; 1 teaspoon pure vanilla extract; 1/4 teaspoon pure almond extract; 3 tablespoons apple jelly; Equipment: a 9- by 3-inch round cake pan or a 9-inch springform pan wrapped in foil; Accompaniment: Calvados vanilla cream