at your mother's knee

at (one's) mother's knee

From one's mother, typically when one was a child. I learned how to bake at my mother's knee when I was just a girl.
See also: knee

at your mother's (or father's) knee

at an early age.
See also: knee

at your ˌmother’s ˈknee

when you were very young: I learnt these songs at my mother’s knee.
See also: knee
References in classic literature ?
Do the days when you sat at your mother's knee, seem days of very long ago?"
Adobo is not the name of the dish but the process of marinating and stewing meat and fowl in vinegar ('adobado') to flavor and preserve before it is seasoned with garlic, peppercorns, bay leaf, and depending on the recipe you learned at your mother's knee, onion and soy sauce.
At the White House, President Clinton said: "You all learned at your mother's knee that an ounce of prevention is worth a pound of cure.