It’s a UK thing, and it’s good. I found it at a candy store called Powell’s near my in-laws. That candy shop is SOO fun- it could have it’s own post. Another time. For now this is what I’m talking about:
The basic idea? It’s one big kit kat. How do you eat yours? I bite the layers apart then nibble down the (thin) wafer/bar. Then repeat until I’ve worked my way down to the last one. MMMM. This is especially good with this big chunky kit kat. Next time, this chocoholic knows to buy more than one!