Pain de Campagne

I found this recipe in my notebook and assume it is from one of TFL bakers - but I didn't make a note of the name. I have to say it is the prettiest loaf I have ever baked and the crust "sang" to me when it came out of the oven. The recipe starts with 1 cup of starter and 1 cup of water and 1 tspn yeast - I used a little less instant yeast. So if you recognize this recipe, many thanks. Oh how I wish I could post a picture! I haven't cut it yet so hope the crumb is as good as the crust, A.