Done to a turn
Definition 1 of 2
Pro Tip 1/3Culinary Precision
Implies that food is cooked with accuracy, neither underdone nor overdone. 
The roast beef was done to a turn for the holiday dinner.
Pro Tip 2/3Complimentary Tone
Used to praise someone's cooking skills, often in a communal eating setting. 
Aunt May's baked ham is always done to a turn during family gatherings.
Pro Tip 3/3Sensory Appeal
Highlights the appealing texture, appearance, and taste of well-cooked food. 
The vegetables were colorful and done to a turn, pleasing to both eye and palate.