1. In a large pot, bring the orecchiette, milk, salt and pepper to a boil over medium-high heat.
2. Boil, uncovered and stirring occasionally, until the liquid has reduced and thickened to a sauce-like consistency and the pasta is tender, 14 to 16 minutes. (Note: The pasta takes longer to cook than the package recommends because you’re starting with cold milk rather than boiling water.)
3. Stir in the butter, cream cheese and cheddar cheese, mixing until they are melted and incorporated. (As you stir, the sauce will become creamier.) Spoon into bowls and serve immediately.