1Whisk together 2 cups milk, ½ cup granulated sugar, ¼ cup cornstarch, 4 egg yolks, and 3 teaspoons vanilla extract in a saucepan over low heat for about 10 minutes until the mixture thickens and begins to bubble.
2Sieve the mixture into a heat-proof bowl, cover, and refrigerate until cold.
3Whip 1 cup of cold whipping cream in a separate bowl and fold it into the chilled mixture.