@Emmacox Oh wow, this is on the same level as our different meanings for "biscuit."

We don't have British flapjacks, per se, but it looks similar to a soft granola bar or an oat treat that you'd find on a gluten-free food blog.

My mind went straight to Clif Bars (a brand of protein/granola bars that you might take on a hike). But they have more ingredients.

There are British folks who live here, have kitchens, and share their favorite recipes. Thus, we have British flapjacks. Technically.