Caramel-Apple Tartlets With Cinnamon-Rum Ice Cream

Ingredients

• 1/2 cup (1 stick) unsalted butter, room temperature
• 1/4 cup sugar
• 1 large egg
• 1 1/2 cups all purpose flour
• 1/4 teaspoon salt
• 2/3 cup sugar
• 1/4 cup water
• 1/4 cup heavy whipping cream
• 3 tablespoons unsalted butter
• 1/4 teaspoon fleur de sel or other fine sea salt
• 6 tablespoons all purpose flour
• 6 tablespoons (packed) dark brown sugar
• 1/4 teaspoon salt
• 1/3 cup pecans, toasted
• 3 tablespoons chilled unsalted butter, cut into 1/2-inch cubes
• 1/2 cup (packed) golden brown sugar
• 1/2 teaspoon cornstarch
• 2 tablespoons (1/4 stick) unsalted butter
• 2 pounds granny smith apples, peeled, cored, cut into 3/4-inch pieces
• 1 teaspoon vanilla extract
• 1 teaspoon whiskey
• 3/4 teaspoon ground cinnamon
• cinnamon-rum ice cream
• six 4 1/2-inch tartlet pans with removable bottom