The only thing better than confit potatoes, is Rustic Garlic Confit Mashed Potatoes! Creamy and rich, they're a fabulous side dish for almost any meal, including Thanksgiving.

Do you ever have a bite of a delicious food, and without intentionally doing so, you close your eyes and moan a bit?
Well, I think it's going to happen when you try these Garlic Confit Mashed Potatoes.
The rich and creamy potatoes with a generous amount of slow roasted garlic, is absolutely impossible to resist.
What does Confit Mean?
Confit typically refers to cooking a meat in its own fat, like Duck Confit. However, the term has extended itself to vegetables cooked in a fat as well — just not their own, obviously.
Hence these lovely potatoes cooking in olive oil.
After getting such a positive response to my Rosemary Potatoes Confit, I tweaked them a bit by adding garlic, and then mashing them to create this deliciousness.
Ingredient Notes
- Idaho Dutch Yellow potatoes or fingerlings - Small, thin-skinned potatoes like these turn creamy and tender in the oil, and there's no need to peel them.
- extra virgin olive oil - You'll need just enough to barely cover the potatoes and garlic, about 2 cups for this recipe. And it doesn't go to waste! The leftover garlic oil is delicious for cooking.
- garlic - We use about 1 small head of garlic in this recipe. Each clove gets peeled and sliced in half lengthwise to remove the little root in the center, which can taste bitter.
How to Make Them
- Place the potatoes and garlic in a baking dish with enough height to cover them with oil.

- Pour in the oil to cover everything, but barely.
- Bake uncovered in a 225°F oven for 2 hours. Then turn the heat up to 400°F and cook for another 10 minutes, until the oil is sizzling a bit.
- Let them cool in the oil. Then use a slotted spoon to transfer the potatoes and every bit of the garlic to a mixing bowl, leaving the oil behind.
- Mash and season.
(More detailed instructions are in the recipe card below.)

Can you make them ahead?
You can make these up to two days beforehand. Once they've cooled to room temperature, wrap them tightly with plastic wrap and refrigerate. A couple hours before serving, bring them to room temperature and heat them in the oven at about 350°F, covered with foil.
What to Do with the Leftover Garlic Oil
Don't toss that golden oil! It's full of mellow, roasted garlic flavor. A few of my favorite ways to use it:
- Sauté vegetables or greens.
- Roast potatoes or other vegetables.
- Drizzle it over pasta or rice.
- Use it as a salad dressing with a splash of your favorite vinegar.
- Use it to cook quesadillas and scrambled eggs.
- Brush it on bread or crostini before toasting.
Important: Store the oil in an airtight container in the refrigerator, never at room temperature, and use it within 4 days. It will firm up in the fridge, so just let it sit out for a few minutes, or spoon out what you need.
Recipe Tips
- You can add fresh herbs to the potatoes if you'd like. Rosemary or oregano would be lovely. Place a couple of sprigs beneath the potatoes before you add the oil.
- For a smoother mashed potato, once the potatoes and garlic are removed from the oil, you can blend them in a food processor, fitted with the blade attachment.
More Potato Sides for Thanksgiving or Any Day
Rustic Garlic Confit Mashed Potatoes are crazy delicious! Like melt-in-your-mouth and oozing-with-flavor delicious! They're an experience.
Enjoy every single bite!

Garlic Confit Mashed Potatoes
Ingredients
- 1 pound Idaho Dutch Yellow Potatoes or Fingerlings washed and dried
- 2 cups extra virgin olive oil
- ¼ cup garlic cloves about 1 small head of garlic
Instructions
- Set the oven. Preheat the oven to 225°F.
- Prepare the potatoes. Place the potatoes in a baking dish that will hold them snugly, in a single layer, and with enough height to cover them with the oil, without getting too near the top edge. Set aside.
- Prepare garlic and add it to the potatoes. Peel the garlic cloves, and then use a paring knife to cut off the root ends. Slice them vertically down the center and use the tip of the knife to remove the inside root. Add the garlic cloves to the potatoes, making sure they are evenly dispersed.
- Add oil and bake. Pour the oil over the potatoes and garlic. It should cover them, but barely. Place the baking dish with the potatoes on a baking sheet, and then in the preheated 225°F oven, uncovered, for 2 hours. Then turn the heat to 400°F, and cook for another 10 minutes -- at this point the oil should be sizzling a bit.
- Cool. Remove them from the oven and let them cool at room temperature in the oil.
- Remove potatoes and garlic from oil and mash. Use a slotted spoon to transfer the potatoes and every bit of the garlic to a mixing bowl. Use a large fork to mash everything together. (I prefer the potatoes to be chunky for this dish.)
- Season. Season generously to taste with salt and pepper. (Here's How.)
- Save the oil. Save the garlic-infused oil in an airtight container in the refrigerator and use it within 4 days for all sorts of cooking.











If you've made this, a star rating would mean so much and helps other readers too! If you haven't made it yet, please skip the stars and just leave a comment. I'd still love to hear from you.
Ben | Havocinthekitchen
I've never tried this method for making mashed potatoes - but oh man - this looks terrific. Ultimately comfort, delicious, and dangerous (Because it will not be possible to stop eating haha) dish!
valentina
Well, that's my experience with it. 😉
Hope you give it a go sometime and love it. Thanks so much, Ben. ~Valentina
Chef Mimi
Mmmmmmm what a fabulous idea! I love confit anything and everything!
valentina
Thank you so much, Mimi! I think "confit" is a magic word. 😉 ~Valentina
valentina
Me too, Mimi! Thanks so much and enjoy. 🙂 ~Valentina
Penny
Do you eat them cold? If not, what is best way to reheat?
valentina
Warm/hot is best! Reheat in the oven (covered with foil at about 350 for 15 minutes or so), or in the microwave. Enjoy!
sylvie
I won't begin my slimming diet right now, these potatoes make me dreaming too much!
valentina
Enjoy! 🙂
Judy at Two Broads Travel
You had me at confit, then you add potatoes. Brilliant, simply brilliant. This will be at my next dinner. Thanks so much.
valentina
Thank YOU Judy. I hope you love them as much as I did!