The rondeau redoublé is a French poetic form composed of 25 lines with only 2 rhymes, whole repeating lines, and a hemstitch.
The lines of the first stanza reappear in order as the final lines of the next four stanzas. The hemstitch appears as a half-line at the very end of the poem. Each stanza rhymes either abab or baba.
Here's one example of the form.
When I'm first working with a new poetic form, I use a guide like this. You can download my template if you want to try it.
Want to know more about the roundeau redoublé? Check out this comprehensive bit of background Kelly Fineman shared at Writing and Ruminating.
I hope you'll join me this week in writing a rondeau redoublé. Please share a link to your poem or the poem itself in the comments.