AceShowbiz -

"MasterChef Junior" will have to keep the stove burning for another season. The reality cooking competition series has scored an early renewal, being picked up for a fourth season by FOX, just one week into its third season which debuted on January 6.

The show has tapped pastry chef Christina Tosi as a new judge, replacing restaurateur and winemaker Joe Bastianich who recently announced his departure from the "MasterChef" franchise. Tosi, the owner and founder of New York City's Milk Bar, will join original judges Gordon Ramsay and Graham Elliot on both "MasterChef" and "MasterChef Junior".

" 'MasterChef' has been one of my favorite shows since it began, and like so many others, I fell in love with 'MasterChef Junior'," Tosi said in a press release. "I'm incredibly humbled by the opportunity and excited to pay forward all that I owe to learning what you're made of in the home kitchen, and putting your neck on the line to show what you've got to the rest of the world!"

Tosi will first appear in the sixth season of "MasterChef", which will air this summer.

"MasterChef Junior" airs Tuesdays at 8 P.M. on FOX. Production on the fourth season will begin this summer.