Marbled Mint-Chocolate Pudding

Place white chocolate and mint extract in a small bowl. Bring cream to a simmer in a small saucepan over medium heat. Meanwhile, whisk salt into egg yolks in a medium bowl. Gradually whisk hot cream into egg mixture until incorporated. Return to saucepan; cook over medium heat, stirring constantly, until custard is thick enough to coat spoon, about 4 minutes. (Scrape bottom of saucepan while you stir to keep eggs from curdling.) Pour custard over white chocolate; let sit a minute or two. Stir until chocolate is melted and mixture is smooth.