This mashed potato salad is a delightful twist on the classic potato salad, combining the creamy texture of mashed potatoes with the tangy flavors of mayonnaise, sour cream, and mustard. It's perfect for any occasion, whether served warm or chilled, and is sure to be a hit at your next gathering.
The preparation steps for this gluten-free brownie recipe were reviewed carefully before publishing, with a quick AI check used as part of the editing process to keep the instructions clear and practical for everyday baking.
Most of the ingredients in this recipe are common pantry staples. However, if you don't usually keep sour cream or green onions on hand, you might need to pick them up at the supermarket. Sour cream adds a rich, tangy flavor, while green onions provide a fresh, slightly sharp taste that complements the creamy potatoes perfectly.
Ingredients for Mashed Potato Salad Recipe
Potatoes: The base of the salad, providing a creamy and hearty texture.
Mayonnaise: Adds creaminess and a slight tang to the salad.
Sour cream: Enhances the creaminess and adds a tangy flavor.
Mustard: Provides a bit of sharpness and depth of flavor.
Vinegar: Adds acidity to balance the richness of the other ingredients.
Salt: Enhances the overall flavor of the dish.
Black pepper: Adds a bit of heat and complexity.
Green onions: Adds a fresh, slightly sharp taste and a bit of color.
Technique Tip for This Recipe
When boiling the potatoes, make sure to start them in cold water and bring to a gentle boil. This ensures even cooking and prevents the outside from becoming mushy before the inside is tender. For an extra creamy texture, consider using a potato ricer or food mill instead of mashing by hand. This will give your mashed potato salad a smoother consistency. Additionally, taste and adjust the seasoning after mixing in the mayonnaise, sour cream, mustard, and vinegar, as the flavors can meld and change as the salad sits.
Suggested Side Dishes
Alternative Ingredients
potatoes - Substitute with cauliflower: Cauliflower can be steamed and mashed to create a similar texture to mashed potatoes while being lower in carbs.
mayonnaise - Substitute with Greek yogurt: Greek yogurt provides a creamy texture and tangy flavor, plus it adds protein and reduces fat content.
sour cream - Substitute with coconut cream: Coconut cream offers a rich and creamy texture similar to sour cream, and it's dairy-free.
mustard - Substitute with Dijon mustard: Dijon mustard has a similar flavor profile but with a bit more complexity and depth.
vinegar - Substitute with lemon juice: Lemon juice provides the necessary acidity and brightness, making it a good substitute for vinegar.
salt - Substitute with sea salt: Sea salt can be used in the same quantity and provides a slightly different, often preferred, flavor.
black pepper - Substitute with white pepper: White pepper offers a similar spiciness but with a slightly different flavor profile that can be more subtle.
green onions - Substitute with chives: Chives offer a similar mild onion flavor and can be used in the same quantity.
Other Alternative Recipes Similar to This Dish
How to Store or Freeze This Recipe
Allow the mashed potato salad to cool completely before storing. This prevents condensation, which can make the salad watery.
Transfer the mashed potato salad into an airtight container. This helps maintain its freshness and prevents it from absorbing any unwanted odors from the fridge.
Store the container in the refrigerator. The mashed potato salad can be kept for up to 3-4 days. Always check for any signs of spoilage before consuming.
For freezing, portion the mashed potato salad into smaller servings. This makes it easier to thaw only what you need.
Use freezer-safe containers or heavy-duty freezer bags. Label them with the date to keep track of how long they've been stored.
When ready to use, thaw the mashed potato salad in the refrigerator overnight. Avoid thawing at room temperature to prevent bacterial growth.
Once thawed, give the mashed potato salad a good stir. You may need to add a bit more mayonnaise or sour cream to restore its creamy texture.
Avoid refreezing the mashed potato salad after it has been thawed. This can affect the texture and flavor negatively.
How to Reheat Leftovers
Microwave Method: Place the mashed potato salad in a microwave-safe dish. Cover it with a microwave-safe lid or plastic wrap, leaving a small corner open to vent. Heat on medium power for 1-2 minutes, stirring halfway through to ensure even heating. If needed, continue heating in 30-second intervals until warmed through.
Stovetop Method: Transfer the mashed potato salad to a non-stick skillet or saucepan. Add a splash of milk or cream to help maintain its creamy texture. Heat over medium-low heat, stirring frequently to prevent sticking and ensure even warming. Cook until heated through, about 5-7 minutes.
Oven Method: Preheat your oven to 350°F (175°C). Spread the mashed potato salad evenly in an oven-safe dish. Cover with aluminum foil to retain moisture. Bake for 15-20 minutes, or until heated through. Stir halfway through the baking time for even heating.
Double Boiler Method: Fill the bottom of a double boiler with water and bring it to a simmer. Place the mashed potato salad in the top part of the double boiler. Stir occasionally, heating until the salad is warmed through, which should take about 10-15 minutes. This method helps to gently reheat without drying out the potatoes.
Instant Pot Method: Use the sauté function on your Instant Pot. Add the mashed potato salad and a splash of broth or milk. Stir frequently to prevent sticking and to ensure even heating. Heat until the salad is warmed through, which should take about 5-7 minutes.
Best Tools for This Recipe
Pot: Used to boil the potatoes until they are tender.
Peeler: Essential for peeling the potatoes before cubing them.
Knife: Needed to cube the potatoes and chop the green onions.
Cutting board: Provides a safe surface for cubing potatoes and chopping green onions.
Mixing bowl: Used to mash the potatoes and mix in other ingredients.
Potato masher: Helps in mashing the boiled potatoes to the desired consistency.
Measuring cups: Necessary for measuring out the mayonnaise, sour cream, and vinegar.
Measuring spoons: Used to measure the mustard, salt, and pepper.
Spoon: Useful for mixing all the ingredients together.
Colander: Used to drain the boiled potatoes.
How to Save Time on This Recipe
Pre-cook the potatoes: Boil and cube the potatoes ahead of time, then store them in the fridge until you're ready to make the salad.
Use a potato masher: A potato masher can quickly and efficiently mash the potatoes to save time.
Pre-mix the dressing: Combine the mayonnaise, sour cream, mustard, vinegar, salt, and pepper in a separate bowl beforehand.
Chop green onions in advance: Prepare the green onions ahead of time and store them in an airtight container.

Mashed Potato Salad Recipe
Ingredients
Main Ingredients
- 4 large potatoes peeled and cubed
- ½ cup mayonnaise
- ¼ cup sour cream
- 1 tablespoon mustard
- 1 tablespoon vinegar
- 1 teaspoon salt
- ½ teaspoon black pepper
- ¼ cup chopped green onions
Instructions
- 1. Boil the potatoes in a pot until tender, about 15-20 minutes.
- 2. Drain and mash the potatoes in a mixing bowl.
- 3. Add mayonnaise, sour cream, mustard, vinegar, salt, and pepper. Mix well.
- 4. Stir in chopped green onions. Serve warm or chilled.
Nutritional Value
Keywords
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