In the meantime, I've done some research about iron-rich foods and one of them is sorghum. What do you know about sorghum? I knew nothing, except that I thought it was sweet enough to provide a syrup. Turns out that I am right. I have some coming by mail in the next week.
A few weeks ago I got some sorghum via Bob's Red Mill. Cooked it up, and probably didn't cook it enough. It was chewy but nice. Maybe I'll ask mrguy to prepare some in his instant pot. Then I'd be sure it was cooked through. Then on my buy nothing facebook group a guy was giving away some sorghum flour. So today I made banana bread using white *and* sorghum flour. I think it tastes pretty good, although I baked it a bit too long.
Readers of mrsguy know how I love a one food festival (like the asparagus festival!) -- so I started exploring where the sorghum festivals can be found. Unfortunately the nearest one is two states away.
There's the Simon Sorghum Festival, in Ohio. Here's their YouTube video about the festival. Rural heritage crafts demonstrations are a bonus.
The Wewoka Sorghum Festival in Wewoka Oklahoma. This one has the added benefit of being co-sponsored by the Seminole Nation. So there are living culture demonstrations, as well.
Blairsville Georgia has a Sorghum Festival, as well. It includes a biscuit eating contest.