These garlic parmesan mashed potatoes are infused with garlic and herbs, then mashed with Parmesan to achieve a perfectly creamy, fluffy texture.
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The star of any meal
If you’ve celebrated Thanksgiving or any big family dinner, you know the side dish everyone reaches for first: mashed potatoes.
No, we’re not talking turkey. We’re talking mashed potatoes.
Whether you molded them into a volcano as a kid and poured gravy in the center, or you simply spoon them alongside everything on your plate, mashed potatoes are a holiday classic.
When made right they are creamy, fluffy, well seasoned, and comforting. This version blends my mom’s techniques with my own tweaks to create garlic parmesan mashed potatoes that shine on any occasion.
Confessions of a microwave-er
Microwave shortcuts often get a bad rap, but they’re practical when kitchen space and time are limited. Especially on busy holidays, the microwave can be your best friend.
Let me be clear: IT’S OK TO USE YOUR MICROWAVE ON THANKSGIVING. Use it to melt butter and bloom garlic so you free up stove space for other dishes.
Guests aren’t judging your technique — they’ll notice the silky, flavorful potatoes and not how the butter was melted. Embrace tools that make the day easier.
Achieving the perfect consistency
The most common problems with mashed potatoes are a gluey texture or being too wet. These issues often come from adding too much liquid or too much cheese, or overworking the potatoes.
Simple tips to avoid those pitfalls:
- Add milk slowly — pour a little at a time and mash until you reach the texture you like.
- Be moderate with cheese — add parmesan in stages so the potatoes don’t become gluey.
- When in doubt, add butter — it improves richness and mouthfeel.
Must Have Ingredients & Tools
Use real ingredients and the right tools for best results.
- Butter — real salted butter adds flavor and silky texture. Avoid substitutes like margarine or oils for this recipe.
- Whole milk & Parmesan — full-fat dairy and real Parmesan provide the flavor and body these potatoes need. Lower-fat alternatives will change the result.
- Garlic & herbs — these elevate the dish. Parsley and rosemary pair beautifully with garlic and Parmesan.
If you like this potato side dish, you’ll also enjoy oven baked lemon pepper fries.
Happy cooking!
Salima
Garlic Parmesan Mashed Potatoes
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- Author: Salima Benkhalti
- Prep Time: 20 minutes
- Cook Time: 30 minutes
- Total Time: 1 hour
- Yield: 6–8 servings
- Category: Potatoes, Side Dish, Mashed Potatoes
- Method: Boiled, Mashed
- Cuisine: American
- Diet: Gluten Free
Ingredients
Scale
- 5 lbs russet potatoes (peeled and cut into halves or fourths)
- Enough water to cover the potatoes plus a couple tablespoons of salt for the cooking water
- 1 cup salted butter
- 5 cloves garlic, minced very finely
- 1/2 cup parsley, minced
- 2 sprigs rosemary, removed from the stem and minced
- 3/4 cup sour cream
- 1/4 cup whole milk
- 1/2 cup grated Parmesan cheese
- 1 tsp nutmeg powder
- 2 tsp salt (adjust to taste)
- 2 tsp freshly cracked pepper
- 1 tbsp butter (to top the potatoes)
Instructions
- Fill a large soup pot with water and add a couple tablespoons of salt. Bring to a boil, then add the peeled and halved potatoes. Cook 25–30 minutes, or until potatoes are fork tender.
- While the potatoes cook, combine the butter, minced garlic, minced rosemary and parsley in a large microwave-safe bowl. Microwave in 30-second intervals until the butter is fully melted and the garlic is fragrant. Set aside.
- When the potatoes are tender, drain them well and return them to the pot or place in a large mixing bowl. Add the garlic-butter mixture and mash using a potato masher or sturdy wooden utensil. Once broken down, add sour cream, milk, salt, pepper and nutmeg. Continue mashing until smooth and silky, adding milk a little at a time to reach the desired consistency. Taste and adjust seasoning as needed.
- Transfer to a serving dish and top with grated Parmesan, a sprinkle of fresh parsley and a tablespoon of butter. Serve hot and enjoy.