Vanilla Pudding from Scratch

Bahan-bahan (6 porsi)

• 4 large egg yolks
• 1/2 cup granulated sugar
• 1/2 cup brown sugar (packed (you can replace this with granulated sugar))
• 1/2 teaspoon kosher salt
• 3 tablespoons cornstarch
• 1 cup whole milk (cold)
• 2 cups whole milk (warm)
• 1 vanilla bean (or 1 tablespoon vanilla extract)
• 2 tablespoons butter