In a medium saucepan, combine the whole milk, sugar, cornstarch, and vanilla extract. Whisk until smooth.

Place the saucepan over medium heat, stirring constantly until the mixture thickens and bubbles.

Pour the milk mixture into a shallow dish and spread it evenly. Allow it to cool completely.

Cut the cooled mixture into squares or rectangles.

Set up a breading station with one dish for flour and another for breadcrumbs.

Dredge each milk piece first in flour, shaking off excess, then coat it in breadcrumbs.

In a frying pan, heat oil over medium-high heat until it shimmers.

Carefully place the coated milk pieces in the hot oil and fry until golden brown on all sides, about 2-3 minutes per side.