Q: My big family eats a huge amount of mashed potatoes ... the most accurate way to tell if meat and fish are done, aside from prodding them with a meat thermometer? Are there some visual clues ...

This dicounted Ninja cooker offers loads of ways to cook with a handy thermometer probe for those precise roasts ...

A herby green sauce, jacket potatoes and blackened onions ... To test that the meat is cooked, insert a digital cooking thermometer into the thickest part of the meat: it should read 58–60C.