For four decades, you could only get it (!) at one place
And that place was San Francisco's now-defunct Playland-at-the-Beach, where super-genius George Whitney birthed the It's-It in 1928.
They briefly stopped making them in the early '70s
Mostly because, well, Playland closed. In 1974, four bros realized that was the dumbest thing ever, and started remaking them in a Burlingame factory and selling them to mom-and-pop shops. Those guys were the best.
It's-It has four regular flavors: vanilla, chocolate, mint, and cappucino
But it also has two much-more-important, SEASONAL flavors: strawberry and pumpkin.
The It's-It Ice Cream Co. actually makes three other kinds of desserts
There's the Big Daddy (like an It's-It, but with chocolate wafers instead of oatmeal cookies), the Super Sundae (basically a sundae on a stick), and the Chips It, which is an It's-It but with two huge choco chip cookies.
They make 100,000 It's-Its a day in their Burlingame factory
That's a half a million. A week.
The chocolate waterfall that every ice cream sandwich passes under? It's called the Chocolate Enrober.