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Cheesy Onion Pie

Cheesy Onion Pie is a cozy pie filled with caramelized onions, lots of cheese, and bacon!

Cheesy Onion Pie

Cheesy Onion Pie is the very close second to Quiche Lorraine!

Filled with caramelized onions, gruyere, and swiss cheese, a little bit of bacon, and all the custardy goodness you can think of!

This is one cozy pie that is sure to warm your bones on a chilly evening at home.

How to make Cheesy Onion Pie

First, we’ll need caramelized onions.

In a skillet with two tablespoons of butter and one tablespoon of olive oil, slowly start sauteing your sliced onions over medium heat.

The process of caramelizing onions is slow, y’all! Pour yourself a glass of wine, and set up shop.

Every 5 minutes, give them a stir. You’ll think nothing is happening, and you’ll want to crank the heat up, but don’t.

After about 25-30 minutes, you’ll end up with the most deliciously sinful caramelized onions, perfect for this recipe or French Onion Soup.

After your onions have caramelized, you’ll make the chest custard.

Cheesy Onion Pie

In a big bowl stir together sour cream, mayo, cheese, eggs, salt + pepper, and the onions. If you want to add bacon do it! But, you don’t have to! I’ve made it several times since without the bacon.

Pour this mixture into a frozen deep-dish pie crust, and bake at 350˚ for about 35 minutes.

In the first half of cooking, you’ll want to cover the pie with aluminum foil that’s been sprayed with cooking spray (so the cheese doesn’t stick!).

Remove the cover in the last half and allow it to brown to a gorgeous golden hue!

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Cheesy Onion Pie

  • Author: Sweetpea


Cheesy Onion Pie is a cozy pie filled with caramelized onions, lots of cheese, and bacon! A lot like Quiche Lorraine – but less fancy!


  • 2 eggs
  • 1/4 cup Mayo
  • 1/4 cup sour cream
  • 1.5 cups of Swiss/gruyere cheese, shredded (reserve some to sprinkle on top before baking!)
  • 1/2 cup diced bacon
  • 3/4 cup Caramelize onions (2 large onions that have been sliced and Caramelized) 
  • Salt & pepper to taste
  • 1 deep dish pie crust


Mix all the ingredients together, dump into your pie dish, and bake at 350* for 25-35 minutes covered, and 10-15 minutes uncovered. 

Keywords: cheesy onion pie

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