Sourdough Onion Bagels

These sourdough onion bagels combine the deep, complex tang of a slow-fermented base with the irresistible sweetness of golden sautéed onions. Handcrafted and boiled for that signature chew, they represent the perfect marriage of artisan bread-making and classic deli flavors, elevating any breakfast spread or sandwich creation.

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Patience is the secret ingredient here. By allowing the dough to ferment overnight, the sourdough cultures work their magic, creating a crumb that is both sturdy and flavorful. This slow process, combined with the aroma of onions sautéing in olive oil, makes the preparation as rewarding as the first toasted bite.

Ingredients

• Sourdough Starter: 100 g active sourdough starter (100% hydration)
• Dough: 400 g bread flour, 50 g whole wheat flour, 10 g sea salt, 25 g granulated sugar, 240 ml lukewarm water
• Onion Topping: 1 large yellow onion (finely chopped), 1 tbsp olive oil or unsalted butter, 1/2 tsp sea salt
• Boiling: 2 L water, 1 tbsp barley malt syrup or honey, 1 tsp baking soda

Instructions

Prepare the onions

In a skillet, heat olive oil or butter over medium heat. Add onions and 1/2 tsp salt. Sauté for 8–10 minutes until soft and golden. Set aside to cool.

Make the dough

In a large bowl, mix sourdough starter, bread flour, whole wheat flour, salt, sugar, and lukewarm water until a shaggy dough forms.

Knead and rest

Knead for 8–10 minutes until smooth and elastic. Cover and let rest for 4 hours at room temperature, performing two stretch-and-folds during the first 2 hours (every 30 minutes).

Bulk ferment

Cover and refrigerate overnight (8–12 hours) for best flavor.

Shape bagels

The next day, divide dough into 8 equal pieces. Shape each into a ball, then poke a hole in the center and stretch to form a bagel shape with a hole about 2 inches in diameter.

Proof

Place shaped bagels on a parchment-lined baking sheet, cover, and let rise for 1–2 hours at room temperature until slightly puffy.

Boil bagels

Preheat oven to 220°C (425°F). Bring water, barley malt syrup (or honey), and baking soda to a boil. Boil bagels 1–2 at a time for 1 minute per side. Remove with a slotted spoon and return to the baking sheet.

Top and bake

While bagels are still damp, press sautéed onions onto the tops. Bake 20–25 minutes until golden brown and cooked through.

Cool

Transfer to a wire rack to cool completely before slicing.

Zusatztipps für die Zubereitung

For the best chew and rise, always use bread flour rather than all-purpose flour. Additionally, ensure your sourdough starter is at its peak activity before mixing the dough to ensure the bagels rise properly during the proofing stage.

Varianten und Anpassungen

To add more texture, try mixing poppy seeds or sesame seeds with the onions before topping the bagels. While barley malt syrup provides the most authentic flavor, honey is an excellent substitute for the boiling water if malt syrup is unavailable.

Serviervorschläge

These savory bagels are fantastic when toasted and spread with plain or chive cream cheese. They also serve as a delicious foundation for a hearty sandwich filled with smoked turkey, sprouts, and sliced tomatoes.

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Mastering the art of the sourdough bagel takes time, but the reward of a fresh, onion-topped loaf is unmatched. Enjoy these as a satisfying morning meal or a gourmet lunch staple that brings the bakery experience straight to your home kitchen.

Recipe FAQs

→ How long should the dough ferment?

The dough requires an 8 to 12 hour cold fermentation to develop its characteristic tang and chewy texture.

→ What is the purpose of boiling the bagels before baking?

Boiling sets the bagel crust, giving it a distinctive chewy exterior while keeping the inside soft.

→ Can I substitute barley malt syrup?

Yes, honey can be used as a substitute to add sweetness and aid in browning during boiling.

→ How do I achieve the golden color on onions?

Sauté finely chopped onions slowly in olive oil or butter with a pinch of salt until they turn soft and golden, about 8-10 minutes.

→ What flour types are best for this dough?

A combination of bread flour and whole wheat flour creates the perfect balance of chewiness and flavor.