Mango Yogurt Tart

Name: Mango Yogurt Tart
Ingredients: For the tart shell; 1 1/2 cups all-purpose flour; 1/2 cup powdered sugar; 1/4 teaspoon salt; 9 tablespoons cold butter cut into chunks; 1 large egg yolk; 3 tablespoons cold water; For the filling; 5 ounces whipping cream; 6 ounces regular sweetened yogurt; 1 1/5 ounces water; 2 teaspoons gelatin; 2 large mangoes (personally I prefer the Filipino ones)