Mo Rocca as seen in “My Grandmother’s Ravioli”

What dishes are your grandparents famous for?

It's something you almost expect from your grandma and grandpa: amazing dishes that only they know how to make just right. Or maybe you're the grandparent with your own cherished culinary masterpieces that have been passed on through the generations.

"My Grandmother's Ravioli" is headed back to the Cooking Channel with a third season this month, no doubt delightful news for fans old and new of this culinary gem.

In the premiere episode, airing Wednesday, Aug. 6, host Mo Rocca will be headed out to Nazareth, Pa., for a little taste of the Pennsylvania Dutch. They're famous for their food, and Bonnie and Barry Boyer will be showing Rocca how to prepare some of the classics: amazing buttery potato filling, succulent stuffed pig's stomach and stunningly sweet shoofly pie.

In case you've never seen the show, that's pretty much how it works: each episode, Rocca goes out to spend a day with someone's grandparents, getting to know them and their hometowns -- but most of all, their food. He's not learning how to cook from afternoon TV shows or dusty old books -- he's out there getting the goods from the people that know food best: mummu and vaari, oma and opa, babushka and dedushka.

It's a charming peek into the lives and recipes of ordinary people who've had decades to perfect their recipes, and Rocca is such a perfect host. The man practically oozes charisma, and it's no wonder people feel comfortable inviting him into their homes.

Does he look familiar? Besides "My Grandmother's Ravioli," Rocca is a correspondent for "CBS Sunday Morning," hosted "Food(ography)" on the Cooking Channel, was a regular correspondent for "The Daily Show Show with Jon Stewart" and has been a regular judge for "Iron Chef America."

"My Grandmother's Ravioli" is Rocca at his best, though: charming, funny and just hanging out and being himself with real, down-to-earth people. Whether he's learning to make kimchi (a fermented Korean classic) from a 72-year-old grandmother or foraging for stinging nettles in the countryside with a child of the '60s to make into delicious nettle frittata, Mo Rocca will be learning the ropes from some of this country's unsung culinary heroes.

"My Grandmother's Ravioli" really is a joy to watch. Catch the third season of this Cooking Channel gem, premiering Wednesday, Aug. 6.