For the potatoes: 1 1/2 pounds russet potatoes 1/4 cup half-and-half 2 ounces unsalted butter 3/4 teaspoon kosher salt 1/4 teaspoon...

4 large egg yolks 1/4 cup sugar 2 1/2 cups heavy whipping cream 8oz semisweet baking chocolate, chopped Beat egg yolks in small bowl with...