Combine Milk and Cream: In your saucepan, mix the whole milk and heavy cream. Heat over medium until it begins to simmer, but do not let it boil.
Mix Cornstarch and Sugar: In a separate bowl, whisk together the sugar and cornstarch until there are no lumps.
Combine Ingredients: Slowly add the sugar and cornstarch mixture to the simmering milk and cream, constantly whisking to ensure it blends smoothly.
Cook to Thicken: Continue to cook the mixture on low heat, stirring frequently, until the mixture thickens to a custard-like consistency.
Add Flavors: Remove the saucepan from the heat and stir in the vanilla extract. If you’re using pink food coloring, add it now until you reach your desired color.
Blend for Smoothness: To get that silky smooth texture, blend the mixture using a blender or an immersion blender.
Serve: Pour the Tubby Custard into serving bowls and allow to cool slightly before serving. It can be served warm or chilled, according to preference.