You need 1 ingredient. The key ingredients include: ["For filling:", "1 large firm, ripe Haden mango - can substitute another sweet variety", "3 ripe star fruit (yellow to light orange in color), edges trimmed (see photo) and waxy skin peeled with a sharp knife", "4 firm, ripe apple bananas, peeled (I would not recommend substituting Cavendish)", "1/4 cup cup evaporated palm sugar ""blonde"" - can substitute light brown sugar", "3 tablespoons good quality gold rum", "1 1/2 teaspoons fresh ginger, peeled and grated with a ceramic or stainless steel grater", "1 teaspoon Saigon cinnamon", "1/4 teaspoon salt", "3/4 cup walnuts, lightly toasted in a 350 degree oven for 5-7 minutes, cooled and finely chopped", "3 tablespoons unsalted butter, softened at room temperature", "Double pie crust for one 9 inch pie - feel free to use the recipe below or your favorite, either homemade or store bought", "For pie crust (from Simply Recipes):", "2 1/2 cups cups all purpose flour", "1 teaspoon salt", "2 tablespoons organic cane sugar", "3/4 cup unsalted butter, chilled, cut into 1/4 inch cubes", "1/2 cup all vegetable shortening (I used Spectrum brand)", "6-8 tablespoons ice water"].