Name: Millionaire's Shortbread
Prep time: 15 min
Cook time: 40 min
Total time: 55 min
Ingredients: 1/3 cup granulated sugar; 3/4 cup unsalted butter, softened; 1 egg yolk; 1 teaspoon vanilla extract; 2 cups all-purpose flour; 1/4 teaspoon salt; 1 can sweetened condensed milk; 1/4 cup unsalted butter; 2 tablespoons golden syrup or light corn syrup; 3 tablespoons brown sugar; 6 oz semi-sweet chocolate; 1/4 cup heavy cream; flaky salt to top, optional