Fall has finally come to Portland, Maine – thanks to climate change visibly later than in earlier years. Though days are sunny and still quite warm, people are getting the Halloween spirit. Between their blooming chrysanthemums and dahlias, many front yards are decorated with grinning skeletons, spider webs, bats, and carved pumpkins.
Last weekend, I saw a new bread in our neighborhood food store, Rosemont Market: Sweet Potato Sage Sourdough.
I like sweet potatoes and sage, and was intrigued. Knowing that this seasonal offering would be available only for a short time, I bought a loaf.

We had the bread for lunch and found it very tasty. And I had an inspiration for my contribution to Zorra’s Blog-Event for World Bread Day 2024 on October 16!
I knew a good place to start from, one of my favorite blogs, Maurizio Leo’s The Perfect Loaf. I love his Roasted Potato Rosemary Bread. I have baked it several time (with some tweaks and changes to the procedure). Even though sweet potatoes are no “real” potatoes, the ratio of ingredients should be about the same.

My experiment worked: the Sweet Potato Sage Loaf tasted great! It also looked very attractive with its autumnal orange.
The taste of the fresh sage is quite subtle. If you prefer a stronger sage aroma, just add some more chopped sage leaves.
The no-knead loaf ferments in the fridge overnight. It doesn’t have to de-chill, and you bake it conveniently in a Dutch oven.

Ingredients:
STARTER
20 g active starter (100% hydration)
10 g spelt flour (or whole wheat flour)
10 g bread flour
20 g water (85ºF/30ºC)
FINAL DOUGH
430 g bread flour
75 g spelt flour (or whole wheat flour)
1 medium sweet potato, about 250 g (200 g flesh is needed )
5 g sage leaves, coarsely chopped
380 g lukewarm water (90ºF/32ºC)
10 g salt
60 g starter (all)
Instructions (with scheduling option)
DAY 1
7:00 am
In small bowl, mix all ingredients for the starter. Cover, and leave in a warm spot for 4-6 hours. It is ready, when a teaspoonful of starter rises to the surface when dropped into water (swim test).

Poke sweet potato a few time (so that steam can escape). Microwave it for about 6 minutes, flipping it halfway through, until very soft. (Alternatively, bake it for 50 – 60 minutes in a 400ºF/200ºC oven).
Peel sweet potato and mash with a fork (puree doesn’t have to be too smooth).

1:00 pm
In large bowl, whisk starter into water (reserve 25 g of the water for adding later).
Mix both flours, then add together with sweet potato flesh to starter mixture. Stir until all flour is hydrated (I use a Danish dough whisk).

Let dough rest, covered, for 1 hour (autolyse).

Add sage, salt, and reserved water to dough. Pinch and fold it 5 – 6 times to combine everything. Then give it a few stretches and folds in the bowl until dough firms up (it will be sticky).

Let dough rest, covered, for about 4 hours in a warm spot, applying 3 – 4 more folds at 30-minute intervals. It will not rise dramatically, but should look a bit puffy and have 20 – 30% more volume. (If not, leave it for another 30 – 60 minutes).

6:00 pm
Sprinkle half of your work surface with flour. Scrape dough onto the un-floured side. Lightly flour top. Using oiled spatula, work into round by drawing spatula around in circles to create surface tension, while rotating it.
Let pre-shaped dough rest, uncovered, for 30 minutes.

Generously flour rising basket (I use a mixture of all-purpose and rice flour). Sprinkle bottom with wheat bran or wheat flakes (to prevent sticking).
Dust top of dough with flour. Using bowl scraper or bench knife, flip it around, floured-side down. Pull bottom of dough up to fold into 1/3 of the round. Pull sides and fold over center to elongate it. Fold top down to center, and then bottom over top fold, leaving seam underneath.

With floured hands, rotate dough ball on the counter, until taut. Place into rising basket, seam-side up, and sprinkle with flour. Cover, and refrigerate overnight, 12 – 14 hours. (No warming-up necessary).

DAY 2
Preheat oven to 500ºF/260ºC, including Dutch oven, placed on center rack.

With a vigorous slap, turn loaf out onto large piece of parchment paper. (Don’t be timid, or the bread will stick!) Cut parchment around bread to make a sling . Slash loaf as desired.
Remove hot pot from oven, and uncover it. (I always place an oven mitt on the lid, so that I don’t accidentally touch it. Been there, painfully done that! ).

Using paper sling, place loaf into hot Dutch oven. Cover with lid.
Bake bread for 20 minutes, then remove lid, and reduce oven temperature to 450ºF/230ºC. Bake for another 20-25 minutes, until loaf is golden brown, and registers at least 200ºF/93ºC on an instant thermometer.
Using sling, transfer bread to wire rack, and remove paper. Let loaf cool completely for several hours before cutting.

Sieht super aus und liest sich sehr spannend, dein Brot
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Thank you! I hope I get to blogging more often again. I admire how you are keeping at it!
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Dear Karin, Lovely to hear from you!! I thought EVERY day was bread day haha
I will definitely pick up a sweet potato and try this.
Lately I have been doing cold bakes, take my bread out of the fridge, put it in a room temperature Cast Iron pot, put it in the oven, turn it on to 475 and bake with lid on for 55 min, then lid off for 10 min. Works a charm. I also put a cookie sheet on the rack below to keep bread bottom from ‘burning’. Have done side by sides bakes, one in a cold oven and one in the hot oven the bakes are the same.
Be well,
Susan
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Thanks, Susan! Great minds think alike – yes, for me everyday is a good day for eating bread, too!
Interesting, your experiments. I did bake some breads (from Farine’s blog) in an un-preheated oven, but the dough was at room temperature.
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Good to hear from you, I wonder what differenct that made, bread rm temp to cold dough. Will send you a picture of my latest cold bake, dough in fridge 12 hours.
Thistle be a beautiful day!
While there is tea there is hope!
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Ein Brot genau nach meinem Geschmack! Rezept ist gespeichert und zum Glück wuchert der Salbei gerade. Danke für deine Teilnahme am World Bread Day!
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Danke, liebe Zorra! Du hast mir den nötigen Anstoss gegeben, nach langer Zeit endlich mal wieder einen Blog-Beitrag zu posten – und mir damit eine willkommene Ablenkung von unserem ätzendem Wahlzirkus verschafft!
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The color is just beautiful, what a nice bread!
Greets Wilma
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Thanks, Wilma! 😊
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Your bread looks beautiful and, certainly, tasty!I was in Portland, Maine and I really liked it.I’m also participating in the WBD. I like discovering breads from different countries.
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Thanks, Gina! It’s always amazing how many different, interesting breads are presented at WBD. And visit Portland again!
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Dear Karin,
This no-knead sourdough bread sounds like the perfect autumn treat! The roasted sweet potato and fresh sage combination must create such a warm and cozy flavor. I can already imagine the lovely orange crumb—absolutely delicious!
Warm Wishes!
Susan
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Thank you, Susan, yes, I am quite happy with the taste – and looks – of the bread.
Take care, Karin
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Looks so good!
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Thank you, Ilze!
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I can smell it baking from here Karin! Excellent directions too, thank you!
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Thank you, Diane 😊
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