Sourdough Onion Pretzel Bites

Featured in: Snack & Appetizer Ideas

These sourdough pretzel bites feature a soft texture paired with the rich sweetness of caramelized onions. The dough is enriched with a lively sourdough starter, combined with bread flour and butter for tenderness. After a slow rise, the dough is shaped into bite-sized pieces, briefly boiled in a baking soda bath to develop their signature crust, then baked until golden brown. Topped with flaky sea salt and an egg wash, these bites are perfect for entertaining or casual snacking. Optional toppings like chives enhance the flavor and presentation.

Updated on Tue, 17 Feb 2026 11:21:22 GMT
Soft sourdough onion pretzel bites with caramelized onions, golden and chewy, perfect for sharing with friends.  Save to Pinterest
Soft sourdough onion pretzel bites with caramelized onions, golden and chewy, perfect for sharing with friends. | vectorgrill.com

Sourdough Onion Pretzel Bites are a savory and sophisticated twist on a classic snack. By infusing a tangy sourdough base with golden caramelized onions, these soft and chewy bites offer a depth of flavor that is perfect for entertaining or a gourmet snack at home.

Soft sourdough onion pretzel bites with caramelized onions, golden and chewy, perfect for sharing with friends.  Save to Pinterest
Soft sourdough onion pretzel bites with caramelized onions, golden and chewy, perfect for sharing with friends. | vectorgrill.com

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This recipe transforms simple pantry staples into a delicious German-American snack. The process involves slow-cooking onions to bring out their natural sweetness before kneading them into a soft, elastic dough that rises for two hours to develop its airy texture.

Ingredients

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  • 1 cup (240 g) active sourdough starter (100% hydration)
  • 2 ½ cups (320 g) bread flour
  • ⅔ cup (160 ml) warm water
  • 2 tbsp unsalted butter, melted
  • 1 tbsp granulated sugar
  • 1 tsp fine sea salt
  • 1 medium yellow onion, finely diced
  • 1 tbsp olive oil
  • ½ tsp salt
  • 6 cups (1.4 L) water
  • ¼ cup (60 g) baking soda
  • 1 egg, beaten (for egg wash)
  • Flaky sea salt, for sprinkling
  • Optional: minced chives or dried onion flakes

Instructions

Step 1
In a skillet over medium heat, add olive oil. Add diced onion and ½ tsp salt. Cook, stirring occasionally, until onions are golden and caramelized, about 12–15 minutes. Set aside to cool.
Step 2
In a large mixing bowl, combine sourdough starter, bread flour, warm water, melted butter, sugar, and 1 tsp salt. Mix until a shaggy dough forms.
Step 3
Add cooled caramelized onions to the dough. Knead by hand (or with a dough hook) for 7–10 minutes until smooth and elastic.
Step 4
Place dough in a lightly greased bowl. Cover and let rise in a warm place for about 2 hours, or until doubled in size.
Step 5
Preheat oven to 425°F (220°C). Line two baking sheets with parchment paper.
Step 6
Turn dough onto a floured surface. Divide into 4 equal pieces. Roll each piece into a 12-inch (30 cm) rope, then cut each rope into 1-inch (2.5 cm) pieces.
Step 7
Bring 6 cups water to a boil in a large pot. Carefully add baking soda (it will bubble). Working in batches, drop pretzel bites into the boiling water for 30 seconds. Remove with a slotted spoon and arrange on prepared baking sheets.
Step 8
Brush each bite with beaten egg. Sprinkle with flaky sea salt and optional toppings like minced chives or dried onion flakes.
Step 9
Bake for 12–15 minutes, or until deep golden brown.
Step 10
Let cool slightly before serving warm.

Zusatztipps für die Zubereitung

For extra flavor, add ½ tsp garlic powder to the dough. It is important to let the caramelized onions cool completely before adding them to the sourdough mixture to ensure the dough rises properly.

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Varianten und Anpassungen

You can customize the toppings by using minced chives or dried onion flakes. These bites are freezer-friendly; once baked, they can be frozen and later reheated in a 350°F (175°C) oven for 5–7 minutes.

Serviervorschläge

Serve these warm pretzel bites with a variety of dips, such as spicy mustard, a rich cheese sauce, or a creamy onion-based dip to complement the sweetness of the caramelized onions.

Golden sourdough pretzel bites packed with sweet onions, boiled in baking soda bath, then baked to a crispy finish.  Save to Pinterest
Golden sourdough pretzel bites packed with sweet onions, boiled in baking soda bath, then baked to a crispy finish. | vectorgrill.com

These Sourdough Onion Pretzel Bites are a rewarding bake that brings a professional touch to your appetizer spread. Enjoy the combination of soft dough, sweet onions, and a salty finish in every mouthful.

Recipe Questions & Answers

What role does the sourdough starter play?

The sourdough starter provides natural leavening and a subtle tang, enhancing the texture and depth of flavor in each bite.

How does caramelizing onions affect the flavor?

Slow cooking onions brings out their natural sweetness, adding a rich, savory contrast to the pretzel's slightly tangy dough.

Why is a baking soda bath used before baking?

Boiling the dough pieces in a baking soda bath creates the traditional chewy crust and deep brown color characteristic of pretzels.

Can these bites be frozen for later?

Yes, after baking and cooling, the pretzel bites freeze well and can be reheated in the oven for a fresh-baked taste.

What toppings complement these bites?

Flaky sea salt enhances the crust, while optional additions like minced chives or onion flakes add extra flavor and visual appeal.

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Sourdough Onion Pretzel Bites

Soft pretzel bites with sourdough and caramelized onions offer a flavorful snack for any occasion.

Prep Time
25 mins
Time to Cook
20 mins
Overall Time
45 mins
Created by Chloe Moore


Skill Level Medium

Cuisine Type German-American

Makes 8 Portions

Dietary Info Vegetarian-Friendly

What You’ll Use

Dough

01 1 cup active sourdough starter at 100% hydration
02 2½ cups bread flour
03 ⅔ cup warm water
04 2 tablespoons unsalted butter, melted
05 1 tablespoon granulated sugar
06 1 teaspoon fine sea salt

Onion Mixture

01 1 medium yellow onion, finely diced
02 1 tablespoon olive oil
03 ½ teaspoon salt

Baking Soda Bath

01 6 cups water
02 ¼ cup baking soda

Topping

01 1 large egg, beaten for egg wash
02 Flaky sea salt for sprinkling
03 Minced chives or dried onion flakes (optional)

How-To

Step 01

Caramelize the Onions: Heat olive oil in a skillet over medium heat. Add diced onion and salt. Cook, stirring occasionally, until onions are golden and deeply caramelized, approximately 12 to 15 minutes. Transfer to a plate and allow to cool completely.

Step 02

Combine Dough Ingredients: In a large mixing bowl, combine sourdough starter, bread flour, warm water, melted butter, sugar, and salt. Mix until a shaggy dough forms.

Step 03

Knead with Onions: Add cooled caramelized onions to the dough. Knead by hand or with a dough hook for 7 to 10 minutes until the dough becomes smooth and elastic.

Step 04

First Rise: Place dough in a lightly greased bowl. Cover and allow to rise in a warm place for approximately 2 hours, or until the dough has doubled in size.

Step 05

Prepare for Shaping: Preheat oven to 425°F. Line two baking sheets with parchment paper.

Step 06

Shape Pretzel Bites: Turn dough onto a floured surface. Divide into 4 equal pieces. Roll each piece into a 12-inch rope, then cut each rope into 1-inch pieces.

Step 07

Boil in Baking Soda Bath: Bring 6 cups water to a boil in a large pot. Carefully add baking soda, which will bubble. Working in batches, drop pretzel bites into the boiling water for 30 seconds. Remove with a slotted spoon and arrange on prepared baking sheets.

Step 08

Apply Egg Wash and Toppings: Brush each bite with beaten egg. Sprinkle with flaky sea salt and optional toppings such as minced chives or dried onion flakes.

Step 09

Bake: Bake for 12 to 15 minutes, or until deep golden brown.

Step 10

Cool and Serve: Allow pretzel bites to cool slightly before serving warm.

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What You’ll Need

  • Large mixing bowl
  • Skillet
  • Saucepan or large pot
  • Slotted spoon
  • Baking sheets
  • Parchment paper
  • Pastry brush

Allergy Info

Look over each item for allergens and check with your doctor if unsure.
  • Contains wheat and gluten
  • Contains eggs
  • Contains dairy (butter)

Nutrition Breakdown (per portion)

Nutrition data is for learning only—not a substitute for professional medical advice.
  • Caloric Value: 180
  • Fats: 4 g
  • Carbohydrates: 31 g
  • Proteins: 5 g

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