Caramelized Onion Buns – Soft, Savory & Irresistible
If you’re looking for a bakery-style bread with a gourmet twist, these caramelized onion buns are the answer. Perfectly soft, golden on the outside, and packed with the deep sweetness of caramelized onions, these buns are a game-changer for burgers, sandwiches, or even as a stand-alone snack.
Caramelized onions bring out natural sugars that add richness and depth of flavor to bread dough. The result? A savory-sweet bun that elevates anything you pair it with. Whether you’re making sliders for game night or serving them alongside a warm soup, these buns will make your meal extra special.
Ingredients (Makes 8 Buns)
For the Caramelized Onions:
- 2 large yellow onions, thinly sliced
- 2 tbsp olive oil or unsalted butter
- 1 tsp salt
- 1 tsp sugar (optional, to speed up caramelization)
For the Dough:
- 3 ½ cups all-purpose flour (420 g)
- 1 packet (2 ¼ tsp) active dry yeast
- 1 cup warm milk (110°F / 45°C)
- 2 tbsp granulated sugar
- 1 tsp salt
- 1 large egg
- 3 tbsp unsalted butter, melted
- ½ cup caramelized onions (from above)
For Topping (optional):
- 1 egg yolk + 1 tbsp water (egg wash)
- Sesame seeds or poppy seeds for garnish
Step by Step Cooking Guide
- Caramelize the onions – Heat olive oil or butter in a skillet over medium-low heat. Add sliced onions, salt, and optional sugar. Stir occasionally for 25–30 minutes until golden brown and soft. Set aside to cool.
- Activate yeast – In a bowl, combine warm milk, sugar, and yeast. Let sit 5–10 minutes until foamy.
- Mix the dough – Add flour, salt, egg, melted butter, and half of the cooled caramelized onions into the yeast mixture. Knead for 8–10 minutes until smooth and elastic.
- First rise – Place dough in a greased bowl, cover, and let rise for 1–1.5 hours, or until doubled in size.
- Shape the buns – Punch down dough, divide into 8 equal pieces, and shape into smooth balls. Place on a parchment-lined baking tray.
- Second rise – Cover loosely and let rise for another 30–40 minutes.
- Prepare topping – Brush buns with egg wash and sprinkle with sesame or poppy seeds if desired.
- Bake – Bake at 375°F (190°C) for 18–22 minutes, until golden brown.
- Cool & enjoy – Let buns cool slightly before slicing or serving.
Cooking Time & Serving Size
- Prep Time: 20 minutes (plus rising time)
- Cook Time: 45 minutes
- Total Time: ~2 hours 30 minutes
- Serving Size: 8 buns
Tips & Variations
- Extra flavor boost: Add shredded cheese (cheddar or gruyere) on top before baking.
- Herb-infused: Mix fresh rosemary or thyme into the dough for an aromatic twist.
- Mini buns: Shape smaller buns for sliders or party appetizers.
- Make-ahead: Caramelize onions a day ahead and refrigerate until ready to use.
Nutrition Info (Per Bun – Approximate)
| Nutrient | Amount |
|---|---|
| Calories | 230 kcal |
| Protein | 6 g |
| Carbohydrates | 34 g |
| Fat | 7 g |
| Fiber | 2 g |
| Sugar | 6 g |
Healthy Alternatives
- Gluten-Free: Use a gluten-free flour blend with 1 tsp xanthan gum.
- Low-Carb/Keto: Replace flour with almond flour + coconut flour (texture will differ).
- Dairy-Free: Use plant-based milk and vegan butter.
- Sugar-Free: Skip added sugar in both dough and caramelized onions.
Serving Suggestions
These caramelized onion buns are a flavor-packed upgrade from regular bread rolls. Use them as burger buns, sandwich bases, or serve them warm with butter and soup. The sweet-savory combination makes them versatile enough for casual family dinners or elegant gatherings.
Once you make these, you’ll never look at plain buns the same way again!
FAQ’s
Q1: Can I freeze caramelized onion buns?
Yes! Once baked and cooled, wrap tightly and freeze for up to 2 months. Thaw at room temperature before serving.
Q2: How do I store them?
Keep in an airtight container at room temperature for 2 days or refrigerate for up to 5 days.
Q3: Can I make the dough in a bread machine or stand mixer?
Absolutely! Both methods work well for kneading and rising.
Q4: Can I skip the egg wash?
Yes, but the buns won’t have the same golden shine. Brush with milk for a lighter finish.
Q5: Can I use red onions instead of yellow?
Yes! Red onions add a slightly sharper sweetness that works beautifully in this recipe.
