1 1/2 cups heavy cream
2 large eggs, separated
1/3 cup plus 1 tablespoon sugar
1 cup mascarpone, at room temperature
1/2 cup canned pumpkin puree
1 1/2 teaspoons pumpkin pie spice
1 1/2 cups brewed espresso, at room temperature
One 5.3-ounce package gluten-free ladyfingers, such as Schar
Bittersweet or semisweet chocolate, for shaving