Orange Angel Food Cake With Caramel Sauce And Tropical-Fruit Compote

Ingredients

• 1 cup sugar
• 1/3 cup water
• 1 cup heavy whipping cream
• 2 tablespoons (1/4 stick) unsalted butter
• 3/4 teaspoon ground cardamom
• pinch of salt
• 1 1/4 cups powdered sugar
• 1 cup cake flour
• 1/4 teaspoon salt
• 1 1/3 cups egg whites (about 9 large)
• 1 1/2 teaspoons cream of tartar
• 1 cup superfine sugar
• 1 tablespoon finely grated orange peel
• 1 1/2 teaspoons vanilla extract
• 2 blood oranges
• 3 ripe passion fruits
• 1 kiwi, peeled, quartered lengthwise, then cut crosswise into 1/2-inch slices
• 1 cup 1/2-inch cubes mango
• 1/2 cup 1/2-inch cubes pineapple
• 1 to 2 tablespoons sugar
• 1 tablespoon chopped fresh mint
• pinch of salt