My late mother's Lemon Meringue Pie...
So good, that after a "first date" when she sent dad off to basic training in the 1950s with a pair (one for him and one for his barracks mates).... my dad spent three years dreaming of doing his Army service and returning to her for more...

(...and he saved the pie pans!)
She also did pretty amazing lemon bar cookies too!
Now Grandmother's Chicken Soup with Matzo Balls (light and fluffly like a cloud) and chicken helzel (boned chicken neck stuffed with kasha, chopped egg, fried onion, and breadcrumbs) was to die for! And faking a cold to earn a dose of "Jewish Penicillin" was not out of the question.