Sourdough Onion Bagels (Printable Version)

Chewy bagels with tangy sourdough and sweet caramelized onions

# What You'll Need:

→ Sourdough Starter

01 - 1/3 cup active sourdough starter (100% hydration)

→ Dough

02 - 3 1/4 cups bread flour
03 - 1/2 cup whole wheat flour
04 - 1 cup warm water
05 - 1 tablespoon honey
06 - 2 teaspoons fine sea salt

→ Onion Topping

07 - 1 large yellow onion, thinly sliced
08 - 1 tablespoon olive oil
09 - 1/2 teaspoon salt

→ For Boiling

10 - 1 tablespoon barley malt syrup (or honey)
11 - 8 1/2 cups water

# Step-by-Step:

01 - Heat olive oil in a skillet over medium-low heat. Add sliced onions and 1/2 teaspoon salt. Cook, stirring occasionally, until deeply caramelized and browned, about 20 to 25 minutes. Remove from heat and set aside to cool completely.
02 - In a large mixing bowl, combine the active sourdough starter, warm water, and honey. Stir thoroughly until the honey dissolves completely into the mixture.
03 - Add bread flour, whole wheat flour, and sea salt to the bowl. Mix until a rough dough forms. Turn onto a lightly floured surface and knead for 8 to 10 minutes until the dough becomes smooth, elastic, and passes the windowpane test.
04 - Place the kneaded dough in a lightly oiled bowl, cover with plastic wrap or a damp towel, and let rest at room temperature for 4 to 6 hours until doubled in size.
05 - Turn the dough onto a floured surface and divide into 8 equal portions. Shape each piece into a tight ball by tucking the edges underneath. Poke a hole through the center with your finger and gently stretch to form a 2-inch opening, creating the classic bagel shape.
06 - Arrange shaped bagels on a parchment-lined baking sheet. Cover loosely with plastic wrap and let proof at room temperature for 1 hour. Refrigerate overnight for 8 to 12 hours to develop flavor and texture.
07 - Preheat oven to 425°F. Ensure the oven rack is positioned in the center for even baking.
08 - Bring 8 1/2 cups of water and 1 tablespoon barley malt syrup (or honey) to a gentle boil in a large saucepan or Dutch oven.
09 - Remove bagels from the refrigerator. Working in batches, boil each bagel for 45 seconds per side, using a slotted spoon to gently flip them. The bagels should float during this process.
10 - Return boiled bagels to the parchment-lined baking sheet. Immediately press the cooled caramelized onions onto the tops of the bagels while they are still tacky from boiling.
11 - Bake for 20 to 25 minutes until the bagels achieve a deep golden-brown color with a crisp exterior. Rotate the baking sheet halfway through for even browning.
12 - Transfer baked bagels to a wire rack and let cool completely before slicing. This prevents the interior from becoming gummy and ensures proper texture development.

# Expert Advice:

01 -
  • The overnight cold proof develops incredible depth you cannot rush
  • Barley malt syrup in the boiling water creates that authentic bakery crust
02 -
  • Skipping the cold proof will give you dense bread instead of chewy bagels
  • Underboiling means no shiny crust, overboiling makes them tough
03 -
  • Use a kitchen scale for this recipe, bagels are surprisingly finicky about ratios
  • The water bath should be gently bubbling, not a rolling boil, to prevent tearing the dough