Things I know and (therefore?) assume everyone knows:

17. You can’t just plant apple seeds and get good apples. If you want good apples, not crab apples – the same apples you started with – the only way to do it is with grafting.

17a. Tangential fact, that I can distinctly remember learning and therefore do not assume is common knowledge: Citrus fruit is also grown by grafting, because if you plant, say, lemon seeds, there’s no guarantee you won’t get grapefruits. In this case I think because they’re all hybrids, so any given genes could win.

18. Jane Austen wrote Emma. Among other things. (And here I’m talking about apparently well-educated, white, English people; the ones I feel qualified to judge. How do they not all know this? What were they doing that day?)

Recipe: I did do this with rhubarb (which I picked and roasted myself) this time, but any jam works and the shortbread is perfect. I like a sprinkly of demerara on top for crunch.