Bring back eggs Benedict with our lightened-up Hollandaise sauce. Here we thicken buttermilk with cornstarch; a touch of butter and fresh lemon creates a pleasant, tangy sauce that has only 1 gram of fat per tablespoon. It's great drizzled over steamed vegetables.
Make Ahead Tip: Cover and refrigerate for up to 2 days. Reheat in a microwave on High for 1 to 1 1/2 minutes, stirring once.
Tip: No buttermilk? You can use buttermilk powder prepared according to package directions. Or make “sour milk”: mix 1 tablespoon lemon juice or vinegar to 1 cup milk.