Mariah Carey is a "really good cook".

Mariah Carey

Mariah Carey

The 'Hero' hitmaker - who is renowned for her diva reputation - admits people don't believe she can impress in the kitchen but she honed her culinary skills while pregnant with her and Nick Cannon's twins Moroccan and Monroe, now four.

She said: "I'm actually a really good cook and people don't believe this about me! When I was pregnant I needed to make sure I was getting my nutrients, so I just started cooking a lot.

"I always cook on the holidays and on Christmas Eve. I cook my dad's recipe for linguine and white clam sauce -- he left that recipe for me; he was a great cook.

"I love to cook; I get creative. It's fun and something totally different from what I do every other day of the year."

The 45-year-old star is currently trying to stay away from alcohol, but her tipple of choice is champagne - because she likes the shape of the glass.

Asked if she prefers champagne or wine, she told Buzzfeed: "Right now I'm not trying to have either one of them. But if I had to, it's all about the glass, so I would have to go with the champagne flute -- it's the best look."

The 'Fantasy' singer is currently performing her Las Vegas residency and says living in Nevada has made her "obsessed" with humidifiers because the air is so dry.

She said: "I'm obsessed with humidifiers, because being in Vegas is so dry. I literally have, like, 10 humidifiers around my bed."