Heat the milk in a small saucepan over medium-low heat until it begins to steam, ensuring it does not reach a boil.

Whisk in the white chocolate chips until they are completely melted and the mixture is smooth.

Remove the saucepan from the heat source to prevent the protein powder from denaturing.

In a separate small container, whisk the protein powder with two tablespoons of warm water or milk to form a smooth slurry.

Slowly whisk the protein slurry into the hot chocolate base until fully integrated.

Stir in the vanilla extract and sea salt.

Pour the mixture into mugs and serve immediately.