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Sour Cream & Onion Mashed Potatoes

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Have you ever sat down for Thanksgiving dinner, eaten a bite of mashed potatoes and just wished they were more interesting, flavor-wise? Us too. Buttery, creamy, standard spuds are amazing, don't get us wrong. But we think there is a perfect way to dial up the classic side dish.
Enter our cream and onion mashed potatoes! Obviously this recipe calls for both sour cream and onions, but there are a few tricks we discovered for making mashed potatoes taste exactly like our favorite flavor of potato chips.
Trick 1: Take the time to caramelize your onions
You could cook raw onions in the pot potato mixture (they’d taste like classic sautéed onions), but to really capture the sweetest, most onion-y flavor, we caramelize the onions in a separate skillet before stirring them into the mashed potatoes. Toss chopped onions with butter in a hot pan and let them do their thing. We caramelize them for 10 minutes so you can get on with the recipe, but for caramelized onions with the most flavor, if you have the time you’ll want to cook them low and slow for at least 40 minutes.
Trick 2: Use milk and sour cream
Using just sour cream will make a rich potato salad for sure, but to achieve the creamiest possible texture in mashed potatoes, you’ll need to stir in some milk along with the sour cream. It won’t take away from the sour cream’s tang, we promise.
Trick 3: Onion powder is your friend
We always suggest you use fresh herbs instead of dried if you can, but when it comes to nailing that sour cream and onion potato chip flavor, you must reach for the jar. That concentrated, almost pungent onion flavor is what we associate we the chips, and when you fold the powder into potatoes, you’re well on your way to the most exciting mashed potatoes of your life.
Gave this recipe a try? Let us know how they added to your holiday feast in the comments below!
Ingredients
- 2 lb.
russet or Yukon gold potatoes
kosher salt
- 2 Tbsp.
butter
- 1
Onion, finely chopped
- 1 cup
sour cream
- 1/2 cup
milk
- 1 Tbsp.
chopped chives, plus more for garnish
- 1 tsp.
onion powder
Freshly ground black pepper
Directions
- Step 1In a large pot, cover potatoes with water and add a generous pinch of salt. Bring to a boil and cook until totally soft, 16 to 18 minutes. Drain and return to pot.
- Step 2Meanwhile, make the caramelized onions: In a large skillet over medium-low heat melt butter. Add onion and season with salt. Cook until soft and golden, 10 to 15 minutes.
- Step 3When the potatoes are tender, use a potato masher to mash until smooth. Add in sour cream and milk and stir until smooth. Fold in caramelized onions and chives and season with onion powder, salt, and pepper. Garnish with chives and serve.