Caramelized Onion and Mushroom White Pizza


Lianna’s list of things that are super annoying to do and take an unnecessarily long amount of time to complete but are things that I really should be doing and so I do them, sometimes:

1. Flossing

…and that’s all I have so far. Can you tell I just flossed?

Also, I went to the drugstore and invested in a bottle of multivitamins, the kind you take once a day, but I couldn’t bear the depressing idea of taking a bland pill-like thing once a day and so I went with the kind that come in sour gummy form. Win!

I’m pretty sure I say this every time I come up with a new post, so what the heck I’ll say it again. This week has really flown by! I kept busy with school, gym/marathon training, catching up with old but still good friends and trying my hardest not to take more than one sour gummy multivitamin a day.  I finally got around to looking in my drafts of posts for this blog and realized that I had never shared this amazing pizza recipe with you! I feel like I’ve been holding back…but honestly, caramelized onions?! I’d say that’s a pretty good start to any recipe.


I’ve actually never caramelized onions before this recipe. I remember when I was young my mom would once in a blue moon buy a massive bag of onions (I’m talking a big bag, the size I picture Santa carrying presents in but maybe not quite that big) when they would go on sale for really cheap. She would spend the whole morning peeling the onions and slowly cooking them in batches on the stove. Our entire house would smell like caramelized onion which at the time I hated because then I had to go to school the next day smelling like onions, but honestly it was so worth it once I had a big bowl of homemade french onion soup in front of me. Yummah! The best memories are the ones you can almost taste.  ANYways, I guess what I’m trying to say is I got a little nostalgic caramelizing onions for this pizza. We keep things simple by just adding mushrooms and a creamy and rich white sauce to this pizza.Yum and perfection!

The only downside is this is the kind of recipe you have to plan for in advance. The dough should be made overnight, and the onions will take almost an hour to caramelize properly. Definitely worth the time and effort though!

Caramelized Onion and Mushroom White Pizzza

For the dough:
2 cups all purpose flour
1 tsp salt
1/4 tsp instant yeast
about 3/4 cup water

For the topping:
3 small yellow onions
2 tbsp olive oil
a pinch salt and pepper
8 oz button mushrooms
1/4 tsp dried thyme
1 cup shredded mozzarella

For the sauce:
1 tbsp butter
1 clove garlic
4 oz cream cheese
1/2 cup milk
1/4 tsp salt

The night before, combine the flour, salt, and yeast in a bowl. Stir to combine. Add just enough water to make the mixture form a ball of dough with no dry flour left on the bottom of the bowl. This will be around 3/4 cup of water. Loosely cover the bowl and allow the dough to rest at room temperature for 12-18 hours.

The next day, about an hour and a half before you plan to eat, thinly slice three small (or 2 medium/large) yellow onions. Saute the onions in a skillet over medium-low heat with 2 tablespoons of olive oil for about 45 minutes, stirring the mixture every 2-3 minutes. The end result should be deep golden brown, soft, sweet onions. For a more detailed, step by step photo tutorial on how to caramelize onions, check here.

While the onions are cooking, slice the mushrooms. Take the caramelized onions out of the skillet and add the mushrooms, along with a pinch of salt and pepper and the dried thyme. There should be some residual oil in the skillet to cook the mushrooms, if not add a tad more. Cook the mushrooms until all of the moisture has evaporated away (about 10 minutes over medium heat).

While the mushrooms are cooking, prepare the cream sauce. Mince a clove of garlic and add it to a pot with 1 tablespoon of butter. Saute over medium heat until softened (about 2 minutes). Next, add the cream cheese, milk, and 1/4 teaspoon of salt. Heat and whisk this mixture until a smooth sauce forms (about 5 minutes).

Adjust the rack in your oven to its highest position and begin to preheat to 500 degrees. The dough at this point should be at least double in volume and very bubbly (see photos below). Sprinkle it generously with flour and then scrape it out of the bowl and onto a floured surface. Pat the dough down into a circle about ten inches in diameter. Transfer the dough to a large (16-inch) pizza pan that has been coated with non-stick spray and stretch/press it the rest of the way out to the edges of the pan.

Spread the sauce over the surface of the dough with the back of a spoon. Sprinkle the caramelized onions and sauteed mushrooms over top. Finally, add the shredded mozzarella. Bake the pizza in the fully preheated 500 degree oven for 12-15 minutes or until the crust is golden brown.

Budget Bytes

Leave a comment


  1. Ok, shut the front door, this is incredible! I looooooove white sauce pizzas and the addition of caramelized onions and mushrooms takes this over the top. Lianna, we need to become neighbours. Would it be creepy if I suddenly showed up at your door, wanting to be let in for dinner? I had something very similar to this in Hawaii last week – flatbread topped with caramelized onions, mushrooms, fontina cheese and drizzled with reduced balsamic vinegar. I was in heaven, it was sooooo good. I can’t wait to try this and recreate that amazing flavour.

  2. I am so glad you did not let this little recipe sit in your archives. Love the caramelized onions on this pizza,

  3. Looks fabulous! Seriously cheesy! Love when the crust is basically covered in cheese. Hehehe. *__*

  4. Yup, can’t go wrong with caramelized onions. Or mushrooms. Or cheese!

  5. Whoaaa. I’ll be honest, I’m not the biggest fan of white pizza but this looks AMAZING. All that melty, browned cheese and CARAMELIZED ONIONS YES! Such a great combo with mushrooms! Have you ever tried sprinkling a tiny pinch of baking soda on your onions while they caramelize? It kind of makes them melt and caramelize about 987234x faster. It’s great! Anyway, gorgeous shots 🙂

  6. i love carmalized onions. i can just eat them plain!

  7. YUM 😀 This looks fabulous!

  8. this is such a nice pizza! i love white pizza and yours is so full of flavour! great creation. 🙂

  9. Oh my gosh looks fantastic!!


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