Caramelized Onion Flatbread

Featured in: Perfect Starters and Savory Bites

You get pillowy, homemade flatbread with a layer of onions cooked down until sweet and jammy. Just grab pantry basics, mix the dough, and let it puff up for an hour. The real magic’s in the onions, which turn golden and rich when cooked slow and low. Poppy seeds add nutty crunch without overpowering the sweet onions. Once baked at a high temp, you’ll have bread with crisp edges and a soft middle—and the topping gets even more caramelized as it cooks.
A woman in a kitchen smiling.
By Chloe Chloe
Updated on Sun, 25 May 2025 15:52:16 GMT
Cebularz Lubelski (Polish Onion Flatbread) Dish Pin it
Cebularz Lubelski (Polish Onion Flatbread) Dish | cookitdelish.com

Classic Polish cebularz shines with bold flavors you get from a handful of everyday items and some patience in the kitchen. Each golden round has a soft, chewy dough topped with sweet, slow-cooked onions and a sprinkle of poppy seeds, delivering big flavor with just a few things. Hailing from Lublin in eastern Poland, this bread has deep local roots but is loved anywhere for its cozy feel and easy bite. Great for munching on its own or dipped in your favorite soups, these flatbreads are easy to make but totally satisfying, no matter the occasion.

I came across this while looking for ways to reconnect with my Polish family's food traditions—stuff I'd only heard about from grandparents. Lots of test runs and onion experiments later, this nailed the flavors I remembered from visiting family as a kid. My husband wasn't sold at first, but now it's what he asks for when the weather turns cold and we're making soup. The best review? My Polish grandmother instantly knew what was baking, and told stories of her mother making these every Friday. That's how I knew it was authentic.

Essential Ingredients

  • Poppy seeds: Bring fun crunch, a bit of nuttiness, and some pop of color
  • Fresh yellow onions: Turn amazingly sweet and rich after good caramelizing
  • Vegetable oil: Helps the dough stay soft without altering the main flavors
  • Table salt: Pulls together both the dough and onion topping
  • Active dry yeast: Makes the dough rise well and gives that classic bread taste
  • Black pepper: Lends a hint of warmth alongside the onions
  • Granulated sugar: Boosts yeast growth and adds a soft background sweetness
  • All-purpose flour: Holds everything together and gives that ideal chewiness

Simple Directions

Add Toppings and Bake:
Spread caramelized onions over each dough circle and sprinkle with poppy seeds. Give them a 15-minute rest, then bake for 18 minutes at 400°F until they're beautifully golden.
Shape Your Discs:
After letting the dough rise, punch it down, divide into eight, roll each into a six-inch circle, and place on baking paper lined sheets.
Sauté Onion Mix:
Gently cook chopped onions in oil over medium-low for about 18 minutes until super soft and golden. Season with salt and pepper, and cool them a bit.
First Rise:
Put the kneaded dough in a lightly oiled bowl, cover, and let it chill out somewhere warm till it's doubled, about an hour.
Knead That Dough:
Mix flour and salt, pour in the foamy yeast and add your oil. Stir together till messy, then knead for about 8–10 minutes until nice and stretchy.
Get Yeast Bubbly:
Mix warm water and sugar, sprinkle yeast over, and wait around eight minutes for some good foam to form.
Easy Cebularz Lubelski (Polish Onion Flatbread) How-To Pin it
Easy Cebularz Lubelski (Polish Onion Flatbread) How-To | cookitdelish.com

After a few rounds of testing, I realized giving those shaped dough circles a quick rest right before popping them in the oven totally transforms the texture. It's now a fun family routine—my teenager caramelizes the onions while I tackle the dough. Makes for some good kitchen bonding.

Tasty Matches

Enjoy beside hearty Polish classics like bean soup or żurek. Mix with tangy pickles and smoked meats for a real Eastern European snack board. Pop a fried egg and some fresh herbs on top for an awesome breakfast.

Fun Twists

Try tossing in crispy bacon bits for a nod to Lithuanian style. Mix some caraway or dill for a Ukrainian vibe. For something modern, add sautéed mushrooms or roasted red bell peppers.

Easy Storage

Store wrapped up in a towel at room temp for a couple of days. Keep in the fridge in a sealed container up to five days, then warm in a 350°F oven. Stash in the freezer for three months—just reheat when you want one.

Deep Roots

This beloved cebularz started in the Jewish neighborhoods of 19th-century Lublin. Now a protected local treasure, its way of making and sharing has stuck through the generations.

Tasty Cebularz Lubelski (Polish Onion Flatbread) How-To Pin it
Tasty Cebularz Lubelski (Polish Onion Flatbread) How-To | cookitdelish.com

The reason cebularz lubelski sticks around? It's all about that straight-up approach and homey flavor. Sharing it and seeing those memories spark with the first bite honestly feels amazing.

Frequently Asked Questions

→ Is it okay to whip up the dough ahead of time?
Go for it! Once you knead it, pop it in a greased bowl, wrap it, and chill in the fridge until you need it. Let it hang out at room temp for half an hour the next day, then move on with shaping and toppings.
→ Got nothing to swap for poppy seeds?
You can toss in sesame seeds, nigella seeds, or a sprinkling of flaky sea salt. All of these make tasty swaps and still play nicely with those sweet onions.
→ Craving extra toppings on your flatbread?
Definitely! This is your blank canvas—sprinkle on some crumbled goat cheese, chopped herbs like thyme or rosemary, sliced olives, or even finish with a quick honey drizzle after baking if you want that sweet-savory thing.
→ How should I keep leftover flatbread?
Once it's cool, stash it in an airtight box and leave it on the counter for two days max. To freeze, wrap each piece, stick them all in a freezer bag, and they’ll keep for a month. Warm 'em up in the oven at 350°F when you want one.
→ Is swapping instant yeast for active dry yeast okay?
Totally fine! Just use equal parts (7g) instant yeast. No need to dissolve it—just toss it in with your dry stuff, and you’ll probably notice it rises a bit quicker.

Caramelized Onion Flatbread

Sink your teeth into chewy, fluffy flatbread covered with a layer of caramelized onions and crunchy poppy seeds. It’s an awesome option for bread lovers wanting something different.

Prep Time
20 Minutes
Cook Time
35 Minutes
Total Time
55 Minutes
By Chloe: Chloe


Difficulty: Intermediate

Cuisine: Mediterranean

Yield: 8 Servings (8 flatbreads)

Dietary: Vegan, Vegetarian, Dairy-Free

Ingredients

→ Dough Ingredients

01 3 cups plain flour
02 1 teaspoon table salt
03 1 packet active dry yeast (7g)
04 2 tablespoons cooking oil
05 1 cup warm water
06 1 teaspoon granulated sugar

→ Topping Ingredients

07 2 tablespoons oil for cooking
08 2 onions, chopped finely
09 A pinch of salt and cracked black pepper
10 2 tablespoons poppy seeds

Instructions

Step 01

Dump the flour, yeast, sugar, and salt into a big bowl and give them a quick mix. Pour the warm water and oil in the middle, then give everything a good stir with a wooden spoon. Bring it all together into a rough dough and turn it out onto a floured surface. Knead by hand for about 10 minutes until it’s smooth, stretchy, and bounces back when prodded. Your arms might feel it, but you’re doing it right!

Step 02

Take a clean bowl and lightly coat it with some oil. Pop your dough ball in and roll it around to oil it up. Cover the bowl with a damp cloth and set it somewhere warm where there’s no chilly air. Leave it to puff up until it’s doubled in size, about an hour, depending on the room temperature.

Step 03

While the dough is growing, heat a skillet over medium and add oil. Toss in the onions, stirring them to get fully coated. Then here’s the secret: let them cook low and slow for 15-20 minutes, stirring now and then, until they turn soft, golden, and sweet. Sprinkle salt and pepper over the top, and let the goodness cool.

Step 04

As the dough’s just about ready, preheat your oven to 400°F (200°C). Grab a baking tray and give it a layer of parchment paper.

Step 05

Once the dough has risen, gently punch it down to knock the air out. Split it into 8 even portions (using a bench scraper makes this easy). Roll each one into a ball, then flatten and stretch it out into a round disk about 1/4-inch thick. Use your hands or grab a rolling pin—both work fine!

Step 06

Place the stretched dough pieces onto the prepared tray with some room between each. Take a spoonful of caramelized onions and spread them over each piece. Sprinkle on the poppy seeds generously, then slide the tray into the hot oven. Bake for 15-20 minutes, until the edges are golden and the flatbreads are cooked all the way through.

Step 07

Let the warm breads cool on the tray for a few minutes before diving in. They taste fantastic while still warm, but even at room temperature, they’re hard to resist. Share, tear, and enjoy every bite!

Notes

  1. Goes great with dips like baba ganoush, hummus, or labneh.
  2. You can make the dough a day before, pop it in the fridge, and let it rise slower. The flavor gets even better!
  3. For a tweak, toss some rosemary or thyme in with the onions while they cook up.

Tools You'll Need

  • Mixing bowl (big)
  • Wooden spoon
  • Frying pan or skillet
  • Tray for baking
  • Baking paper

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Made with wheat flour, so contains gluten.

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 210
  • Total Fat: 6 g
  • Total Carbohydrate: 35 g
  • Protein: 5 g