Britney Spears could be biting off more than she can chew with her latest food craving – Kendal Mint Cake. The pregnant star has given up her normal diet of junk food but now apparently can’t get enough of the sweet treat. The Cumbrian snack is normally reserved for keeping up the energy levels of mountaineers. And as if the calorie-laden treat isn’t fattening enough, she’s covering it with peanut butter. But with one miscarriage scare behind her, perhaps Britney just wants to keep her strength up.