This Caramelized Onion and Mushroom Flatbread recipe is an easy appetizer for your next party! Caramelized onions finished with sherry wine takes this flatbread to the next level. You can use store-bought flatbread OR refrigerated pizza dough! Either way, the flavors are spot on and will keep your guests happy!
Is Flatbread Dough The Same As Pizza Dough?
If they were both thrown in the ring, who would win?
Ehhh, I’d put my money on pizza dough only because it has one added ingredient. Something to give it it’s ‘muscles’.
YEAST!
But like I said, if we’re talking about your standard flatbread vs. your standard pizza dough, they are pretty darn identical.
The “flatness” (yes I made that up) of the flatbread is just a lack of air bubbles that form in the dough.
Flatbread vs. pizza dough. On Demand next month! 😆
How Do You Make Pizza With Flatbread?
They taste the same but texture-wise, pizza dough is usually chewier and flatbread is famously known as having a thin and crispy texture.
And because I wanted to go for a flatbread appetizer, THIN and CRISPY was my goal.
To achieve this goal, what you need to do is:
- Roll the dough out as thin as possible without putting holes in it.
- Poke the life out of your pizza dough using a fork. (This does not allow the dough to rise.)
- Brushed both sides of the dough with a little olive oil and sprinkled with salt and pepper. (This helps with browning AND the flavor!)
That’s it! Then I used a sheet pan to bake it on. But if you have a pizza stone, use it! It will help to crisp your crust!
How Long Does It Take To Make Caramelized Onions?
When it comes to caramelizing onions, the LONGER the better!
I would say a minimum of 30 minutes is needed but 45-60 min. is ideal!
If you’re in a rush, don’t bother because LOW and SLOW is how you’ll get the most sugar from your onions.
If you try to rush the process, you will burn your onions which is NOT what we want.
Also, know that onions have a lot of water in them so it will look like too many onions at first but they will shrink down A LOT! So don’t be afraid to pile them into your skillet!
Pin the recipe below to your Pinterest board!
This Caramelized Onion and Mushroom Flatbread recipe is an easy appetizer for your next party! You can use store-bought flatbread OR refrigerated pizza dough! Either way, the flavors are spot on and will keep your guests happy!
- 16 oz. Pizza Dough (or store-bought flatbread)
- 1 Large Onion (or two medium)
- 1/4 Cup Olive Oil (+ 1 Tbsp.)
- 4 Cups Mixed Mushrooms (I used Cremini, Bella & Shiitake)
- 2 Cups Shredded Monterey Jack Cheese
- 6-8 Sprigs Fresh Thyme
- 3 Large Garlic Cloves
- 3 Tbsp. Sherry Wine
- 1/8 Tsp. Salt
- 1/8 Tsp. Pepper
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Preheat oven to 425 degrees F.
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Add onions. thyme sprigs and 1/4 cup oil to a saute pan and slowly saute for at least 30 minutes until you get a nicely browned/caramelized color. The thyme will fall off the sprigs so no need to remove it.
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Add your mushrooms and garlic and saute for another 5 minutes.
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Add the sherry wine and let simmer for 2-3 more minutes before taking off the heat.
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If using pizza dough:
Roll your dough out as this as you can without putting holes in it. Brush 1 tbsp. oil over top of the dough and season with salt/pepper.
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If using store-bought flatbread:
Brush 1 tbsp oil over top of the dough and season with salt/pepper.
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Bake dough/flatbread at 425 F for 10-12 minutes or until golden brown. (store-bought flatbread may brown quicker!)
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Once your crust is nice a crispy. Remove from oven and spread the mushroom mixture evenly over top topping finishing with the cheese. Bake 5 more minutes or until melted. Cut into strips and serve warm!
*Using store-bought flatbread is a quicker way to make this flatbread and tastes just as good!
*Add the cheese and mushrooms right before your guests arrive and pop it in the oven to serve it hot!



This looks so delicious, Aleka! I know my family would love this! Mushrooms are our favorite!
Thanks Beth!!