Makes 1 large round cake Ingredients For the crumb 1 cup all-purpose flour ½ cup brown sugar 1 teaspoon ground cinnamon ½ teaspoon ground cardamom ½ teaspoon ground nutmeg ½ teaspoon ground black pepper ¼ teaspoon salt ¾ cup chopped nuts (ideally pecans) 1 stick (8 tablespoons) butter, melted 2 large pears, cored and cubed…