Then use a
milk frother or a spoon to stir the mixture until it's all a uniform deep purple color. You could also just use ½ teaspoon of
ube extract in the milk, but I always prefer the real thing (though the texture of the two is definitely different). This is when you'll want to taste the ube milk and make sure it's both strong enough in flavor and sweet enough for you. If it needs more ube flavor, stir in another tablespoon of ube halaya. For more sugar, start with a half tablespoon of condensed milk and just keep stirring in more until it's to your taste.