Instant Pot mashed potatoes are a quick and easy side dish made with creamy Russet potatoes, butter, and sour cream for a rich, velvety texture. Perfect for holiday dinners or weeknight meals, this recipe takes only minutes to prepare and delivers restaurant-quality results at home. Serve alongside roasted meats, turkey, or fish for a comforting and flavorful addition to your table.

Ingredients
- 6 medium Russet potatoes (about 2 lbs.)
- 3 cups chicken broth
- 3 cups cold water
- 1 pinch of salt
- ½ cup sour cream (room temperature)
- ½ cup whole milk (room temperature)
- 6 tablespoons butter (softened)
- Salt and pepper, to taste
- Fresh chives or parsley for garnish (optional)
Instructions
- Prepare Ingredients:
- Take the sour cream, milk, and butter out of the refrigerator and let them warm to room temperature.
- Peel the potatoes and cut them into equal-sized pieces (thirds or fourths).
- Cook Potatoes in the Instant Pot:
- Place the potatoes in the Instant Pot.
- Mix the chicken broth, water, and a pinch of salt, then pour enough to cover the potatoes without exceeding the Instant Pot’s max fill line.
- Secure the lid, set the Instant Pot to “Manual” or “Pressure Cook,” and cook for 10 minutes.
- Release Pressure:
- Once the cooking time is complete, carefully release the steam by turning the seal valve. Wait for all the steam to escape before opening the lid.
- Check and Drain:
- Test the potatoes with a fork to ensure they are tender. Reserve ½ cup of the cooking liquid if the potatoes will be kept warm for later use. Drain the rest of the liquid.
- Mash Potatoes:
- Add the softened butter to the potatoes. Use a potato masher to mash them until smooth, being careful not to over-mash to avoid a gluey texture.
- Add Dairy:
- Stir in the sour cream and milk until well combined. Adjust salt and pepper to taste.
- Serve:
- Keep the mashed potatoes warm in the Instant Pot until ready to serve. Garnish with freshly chopped chives or parsley if desired.
Why You’ll Love This Recipe
- Time-Saving: Cooking potatoes in the Instant Pot significantly reduces prep and cook time.
- Creamy Texture: Achieve perfectly smooth and fluffy mashed potatoes without hassle.
- Customizable: Easily adjust the ingredients to suit your preferences.

Tips
- Avoid Over-Mashing: Over-mashing can result in a gluey consistency. Mash just until smooth.
- Warm Ingredients: Room-temperature dairy products blend more smoothly and prevent lumps.
- Reserve Liquid: Save a bit of the cooking liquid to keep potatoes moist if serving later.
Variations and Substitutions
- Dairy-Free: Use plant-based milk and vegan butter for a dairy-free option.
- Add Flavor: Mix in roasted garlic, grated Parmesan, or cream cheese for added richness.
- Different Potatoes: Substitute Yukon Gold potatoes for a naturally creamier texture.
FAQs
Can I use the Instant Pot’s “Keep Warm” setting?
Yes, this helps keep the potatoes warm without drying out, especially if you add a bit of the reserved liquid.
Can I make this recipe ahead?
Yes, mashed potatoes can be reheated in the Instant Pot or microwave. Add a splash of milk or butter to restore creaminess.
What can I use instead of chicken broth?
Vegetable broth or just water with extra seasoning works well as a substitute.
Serving and Suggestions
- Pair with roasted meats, turkey, or grilled fish for a hearty meal.
- Serve as a side dish at holiday gatherings, alongside gravy or cranberry sauce.
- Store leftovers in an airtight container in the fridge for up to 3 days, and reheat before serving.
Instant Pot Mashed Potatoes Recipe
6
servings10
minutes10
minutesIngredients
6 medium Russet potatoes (about 2 lbs.)
3 cups chicken broth
3 cups cold water
1 pinch of salt
½ cup sour cream (room temperature)
½ cup whole milk (room temperature)
6 tablespoons butter (softened)
Salt and pepper, to taste
Fresh chives or parsley for garnish (optional)
Directions
- Prepare Ingredients:
- Take the sour cream, milk, and butter out of the refrigerator and let them warm to room temperature.
- Peel the potatoes and cut them into equal-sized pieces (thirds or fourths).
- Cook Potatoes in the Instant Pot:
- Place the potatoes in the Instant Pot.
- Mix the chicken broth, water, and a pinch of salt, then pour enough to cover the potatoes without exceeding the Instant Pot’s max fill line.
- Secure the lid, set the Instant Pot to “Manual” or “Pressure Cook,” and cook for 10 minutes.
- Release Pressure:
- Once the cooking time is complete, carefully release the steam by turning the seal valve. Wait for all the steam to escape before opening the lid.
- Check and Drain:
- Test the potatoes with a fork to ensure they are tender. Reserve ½ cup of the cooking liquid if the potatoes will be kept warm for later use. Drain the rest of the liquid.
- Mash Potatoes:
- Add the softened butter to the potatoes. Use a potato masher to mash them until smooth, being careful not to over-mash to avoid a gluey texture.
- Add Dairy:
- Stir in the sour cream and milk until well combined. Adjust salt and pepper to taste.
- Serve:
- Keep the mashed potatoes warm in the Instant Pot until ready to serve. Garnish with freshly chopped chives or parsley if desired.

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