This was outrageous and may be favorite inclusion choice yet!!! I even served it with french onion soup to keep the theme going!
Looking for More Sourdough Inspiration? If you’re enjoying this recipe, don’t miss my Ultimate Sourdough Recipe Collection featuring everything from classic artisan loaves to fun flavored breads, sourdough desserts, pizza dough, and creative discard recipes. Browse the collection and discover your next bake!

French Onion Sourdough
Ingredients
Bread
- 460 g all-purpose flour
- 340 g water
- 9 g salt
- 1 Lipton French Onion Soup packet 28 g
- 92 g ripe sourdough starter
Caramelized Onions
- 2 medium yellow onions ~300 g raw
- 1 T. butter
- 1 T. Olive Oil
- ½ tsp kosher salt
- ¼ cup dry white wine
- 2 tsp Worcestershire sauce
Inclusions
- 70 Gruyère cubed
- 40 g Brie small cubes
Instructions
Onions
- Thinly slice onions.
- Melt butter and oil.
- Add onions and salt.
- Cook medium-low, stirring occasionally, 25–30 min, until golden and jammy.
- Once onions are caramelized, deglaze pan with white wine.
- Let simmer until the wine is almost completely cooked off.
- Stir in Worcestershire the last 2–3 minutes.
- Cool completely before adding to dough.
Bread
- Mix dough ingredients, reserving 50g of water, to a mixing bowl and mix with a scraper. 2-5 mins. Slowly add in the 50g of the reserved water if the dough feels like it can handle it- I left over only a little. You don't want it soupy!
- *note: One day I forgot to reserve some water -used it all and bread was fabulous!!
- Let it sit 30 mins and do a stretch & fold. Repeat this for a total of 4-5 stretch & folds covering in between. (I used a proofing box so did not cover.) Do this every 30 mins.
- Transfer to oiled cambro let bulk fermentation finish.
- Lightly flour your work surface and scrape out your dough.
- Pull sides up into a boule and rest 20 mins uncovered.
- Shape the dough into a rectangle and add inclusions of onions and cheeses at this point. Shape into a boule or batard then place the dough in bannetons with rice flour on the bottom.
- At this point I put mine in fridge overnight and baked in the morning.
- Score the loaf and bake at 450 covered 20 mins. (I used a pizza stone and baking shell.)
- Remove cover, place a pan under the rack and bake uncovered -took 35-40 more mins and I tented with foil to avoid over browning.
- Cool at least an hour!



Leave a Reply