Cheesy Caramelized Onion and Bacon Potato Gratin is a rich, tasty dish that layers potatoes, sweet onions, crispy bacon, cream, and gruyère cheese.
- Cheesy Caramelized Onion and Bacon Potato Gratin — introduction
- Cheesy Caramelized Onion and Bacon Potato Gratin — why make this recipe
- How to make Cheesy Caramelized Onion and Bacon Potato Gratin
- Cheesy Caramelized Onion and Bacon Potato Gratin — Ingredients
- Cheesy Caramelized Onion and Bacon Potato Gratin — Directions
- How to serve Cheesy Caramelized Onion and Bacon Potato Gratin
- How to store Cheesy Caramelized Onion and Bacon Potato Gratin
- Tips to make Cheesy Caramelized Onion and Bacon Potato Gratin
- Cheesy Caramelized Onion and Bacon Potato Gratin — variation
- Cheesy Caramelized Onion and Bacon Potato Gratin — FAQs
Cheesy Caramelized Onion and Bacon Potato Gratin — introduction
This Cheesy Caramelized Onion and Bacon Potato Gratin cooks slowly until the top is golden and the potatoes are soft.
It makes a warm, filling side or main for family dinners.
If you enjoy potato dishes, you might also like this chermoula potato and fish stew: https://quickyandtasty.com/chermoula-potato-and-fish-stew/.
Cheesy Caramelized Onion and Bacon Potato Gratin — why make this recipe
Make this Cheesy Caramelized Onion and Bacon Potato Gratin because it is simple and full of flavor.
Caramelized onions add sweetness, bacon adds crunch, and gruyère melts into a creamy top.
If you like hearty comfort food, try similar cozy bowls like this cod, celery and potato stew: https://quickyandtasty.com/cod-celery-and-potato-stew-with-coconut-and-herbs/.
How to make Cheesy Caramelized Onion and Bacon Potato Gratin
Follow these clear steps to make Cheesy Caramelized Onion and Bacon Potato Gratin at home.
Work in stages: cook bacon and onions first, then layer potatoes, cream, and cheese, and finish in the oven.
For ideas using bacon in other dishes, see these bacon-cheddar waffles: https://quickyandtasty.com/crispy-waffles-with-bacon-cheddar-cheese-and-scallions/.
Cheesy Caramelized Onion and Bacon Potato Gratin — Ingredients
- Potatoes
- Onions
- Bacon
- Heavy cream
- Gruyère cheese
- Butter
- Salt
- Pepper
Cheesy Caramelized Onion and Bacon Potato Gratin — Directions
- Preheat the oven to 350°F (175°C).
- In a skillet, cook the bacon until crispy, then remove and set aside.
- In the same skillet, caramelize the onions until golden brown.
- Slice the potatoes thinly and layer half of them in a greased baking dish.
- Sprinkle half of the caramelized onions and half of the crumbled bacon over the potatoes.
- Repeat the layers with the remaining potatoes, onions, and bacon.
- In a separate bowl, mix heavy cream with salt and pepper, then pour over the layered potatoes.
- Top with grated gruyère cheese.
- Bake for 45-60 minutes, or until the potatoes are tender and the top is golden brown.
- Let it cool for a few minutes before serving.
How to serve Cheesy Caramelized Onion and Bacon Potato Gratin
Serve Cheesy Caramelized Onion and Bacon Potato Gratin warm from the oven.
Pair it with a green salad or steamed vegetables to balance the richness.
It also works well with a simple roasted protein for a full meal.
How to store Cheesy Caramelized Onion and Bacon Potato Gratin
Cool the gratin to room temperature before storing.
Cover and refrigerate for up to 3-4 days. Reheat in a 350°F (175°C) oven until warmed through.
You can also freeze portions in airtight containers for up to 2 months.
Tips to make Cheesy Caramelized Onion and Bacon Potato Gratin
- Slice potatoes evenly so they cook at the same rate.
- Don’t rush the onions — low heat makes them sweet and soft.
- Use a sharp grater for the gruyère so it melts well.
- For a side that complements this gratin, try a spicy-sweet pairing like this curry shrimp and sweet potato: https://quickyandtasty.com/curry-shrimp-and-sweet-potato/.
Cheesy Caramelized Onion and Bacon Potato Gratin — variation
- Swap gruyère for cheddar or fontina for a different flavor.
- Add a layer of spinach or mushrooms between potatoes for more veg.
- Make it vegetarian by leaving out the bacon and adding smoked paprika for a savory note.
Cheesy Caramelized Onion and Bacon Potato Gratin — FAQs
Q: Can I use a different cheese for Cheesy Caramelized Onion and Bacon Potato Gratin?
A: Yes. Gruyère gives a nutty melt, but cheddar, fontina, or a mix work well too.
Q: Can I make Cheesy Caramelized Onion and Bacon Potato Gratin ahead?
A: Yes. Assemble it, cover, and refrigerate for up to 24 hours before baking.
Q: Where can I buy gruyère for this Cheesy Caramelized Onion and Bacon Potato Gratin?
A: You can buy gruyère online. Buy it here.
Q: How do I keep the top from burning while the potatoes cook?
A: If the top browns too fast, cover the dish loosely with foil during the last part of baking.

Cheesy Caramelized Onion and Bacon Potato Gratin
Ingredients
Main Ingredients
- 4 medium Potatoes Sliced thinly
- 2 medium Onions Caramelized
- 6 slices Bacon Cooked until crispy
- 1 cup Heavy cream
- 1 cup Gruyère cheese Grated
- 2 tablespoons Butter For greasing the baking dish
- 1 teaspoon Salt
- 1 teaspoon Pepper
Instructions
Preparation
- Preheat the oven to 350°F (175°C).
- In a skillet, cook the bacon until crispy, then remove and set aside.
- In the same skillet, caramelize the onions until golden brown.
- Slice the potatoes thinly and layer half of them in a greased baking dish.
Layering
- Sprinkle half of the caramelized onions and half of the crumbled bacon over the potatoes.
- Repeat the layers with the remaining potatoes, onions, and bacon.
Final Assembly and Baking
- In a separate bowl, mix heavy cream with salt and pepper, then pour over the layered potatoes.
- Top with grated gruyère cheese.
- Bake for 45-60 minutes, or until the potatoes are tender and the top is golden brown.
- Let it cool for a few minutes before serving.

