It's the first time I've ever made marmalade. I thought it would be harder. Hubby helped me cut the thin lemon and orange peel into fine strips. I used the recipe from the paper insert in the Certo Box. It's online here too.
The online recipe gives a bit more detail than the paper insert. It says this is a slow setting jam, so we'll be patient and have a look at it in two weeks to see how it is. I think it's going to be a bit to tart for me.