These roasted garlic mashed potatoes are like mashed potatoes gone to finishing school with sour cream, Parmesan, and sweetly caramelized onions suffused with red wine. Quite possibly the best mashed potatoes we’ve ever had.
These roasted garlic mashed potatoes with caramelized onions take comfort food to places you’d never imagined. The recipe makes a startlingly large batch, although the creamy mashed potatoes, slow roasted garlic, and sweet and wine-suffused onions will make you glad you made so much. The best part? The leftovers freeze and reheat beautifully, which means you’re one step closer to dinner on a chaotic weeknight in the future.–Angie Zoobkoff
Roasted Garlic Mashed Potatoes
- Quick Glance
- 45 M
- 1 H
- Serves 12 to 14
IngredientsEmail Grocery List
What You Need To Know About Freezing These Mashed Potatoes For Later
- To freeze the roasted garlic mashed potatoes, let the mashed potatoes cool. We like to do this in 2- to 3-cup portions in quart-size bags, then a couple of small disposable loaf pans able to hold 4 cups of mashed potatoes. For that method, we wrap the containers tightly with plastic wrap, then foil and label the top. To reheat the roasted garlic mashed potatoes: Thaw in the refrigerator overnight, then place in a slow cooker on low to reheat. Once warm, turn the slow cooker to warm until ready to serve. Thawed mashed potatoes may also be warmed in a large pot over low heat, stirring every few minutes.
Recipe Testers Reviews
Delicious. The varietal of wine I used was Merlot. I got 14 servings out of the recipe. Delicious.
I loved how all the ingredients (and there are quite a few ingredients for mashed potatoes) added up to delicious roasted garlic mashed potatoes that I found myself eating off the spoon and, if I'm going to be honest, eating from my finger as I waited for the other dishes to get done. (Hey, wasn’t it Julia Child who said that you’re always alone in the kitchen? Or something close to that.)
I cut all the ingredients in half because a whole recipe was just going to be too much for 2 people. Even with half a recipe, we had mashed potatoes 2 nights in a row with cider-brined pork chops and 2 nights with chicken piccata. I’m in favor of it all.I liked the technique of adding the brown sugar and red wine—Syrah in my case—to the onions given how nicely the onions caramelized. I did let them cook for a few minutes to cook off the raw taste of the wine.
This roasted garlic mashed potatoes recipe makes a large amount (at least 12 servings) but with the option to freeze them for up to 6 months, there's definitely a time-saving benefit to making this amount all at once.
The garlic will take 40 to 45 minutes to become tender and develop a sweet, nutty flavor.
The amount of dairy used is less than what is used in most mashed potatoes recipes but you will get great flavor from the onions and the garlic and with some effort to mash the cooked potatoes, the dish will turn out fairly smooth and creamy. For the red wine, I used a Cotes du Rhone Rose.
I did not use a slow cooker to reheat the defrosted potatoes, but warming them in a pot over low heat works very well.