🍽️ Make‑Ahead Herb‑Roasted Garlic Mashed Potatoes – Thanksgiving Crowd‑Pleaser

Make-ahead herb-roasted garlic mashed potatoes are a stress-free side dish perfect for Thanksgiving. With roasted garlic, fresh herbs, and creamy butter, this recipe is a crowd-pleaser.

🍽️ Make‑Ahead Herb‑Roasted Garlic Mashed Potatoes – Thanksgiving Crowd‑Pleaser

Nutritional & Health Information

Nutritional information provided is approximate and may vary based on cooking methods, ingredients used, and serving sizes. This recipe is for informational purposes only and is not intended as medical or nutritional advice. If you have dietary restrictions, allergies, or health concerns, please consult with a qualified healthcare professional or registered dietitian before making dietary changes. Always ensure all ingredients are safe for your personal consumption.

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Make‑Ahead Herb‑Roasted Garlic Mashed Potatoes

The quintessential Thanksgiving side dish just got a whole lot easier with our make‑ahead herb‑roasted garlic mashed potatoes recipe. Perfect for large gatherings, this stress‑free dish can be prepared ahead of time, refrigerated, and reheated on the day of serving, ensuring a silky, buttery, and flavorful accompaniment to your Thanksgiving feast.

Herb-roasted garlic mashed potatoes in a large serving dish, garnished with fresh herbs

Ingredients

  • 4-5 large potatoes, peeled and chopped into 1-inch cubes
  • 2 heads of garlic, separated into individual cloves
  • 2 tablespoons olive oil
  • 1 teaspoon dried thyme
  • 1 teaspoon dried rosemary
  • 1 teaspoon salt
  • 1/2 teaspoon black pepper
  • 2 tablespoons unsalted butter, softened
  • 1 cup heavy cream or half-and-half
  • 1/4 cup grated cheddar cheese (optional)
Roasting garlic in the oven, wrapped in foil

Instructions

  1. Step 1: Roast the Garlic Preheat your oven to 400°F (200°C). Cut the top off each head of garlic, drizzle with olive oil, and wrap in foil. Roast for 30-40 minutes or until cloves are tender and mashed easily.
  2. Step 2: Boil the Potatoes Place the chopped potatoes in a large pot and add enough cold water to cover them. Bring to a boil over high heat, then reduce the heat to medium-low and simmer for 15-20 minutes, or until the potatoes are tender when pierced with a fork.
  3. Step 3: Mash with Herb‑Roasted Garlic and Cream Drain the potatoes and return them to the pot. Add the roasted garlic, thyme, rosemary, salt, and pepper. Mash the potatoes with a potato masher or a fork until they're mostly smooth. Gradually add the softened butter, heavy cream, and grated cheddar cheese (if using), continuing to mash until the potatoes are silky and creamy.
  4. Step 4: Refrigerate and Reheat Transfer the mashed potatoes to a serving dish, cover with plastic wrap or aluminum foil, and refrigerate for up to 24 hours. On the day of serving, reheat the potatoes in the oven at 350°F (175°C) for about 20-25 minutes, or until warmed through.
Mashing potatoes with herb-roasted garlic and cream

Why This Recipe Works

This make‑ahead herb‑roasted garlic mashed potatoes recipe is a game-changer for Thanksgiving. The key to its success lies in the combination of roasted garlic, which adds a deep, nutty flavor, and the use of heavy cream, which ensures a silky texture. By preparing the dish ahead of time and refrigerating it, you can save time on the day of serving and focus on other aspects of your Thanksgiving feast.

Additionally, this recipe is highly customizable. You can adjust the amount of garlic to your taste, add other herbs like parsley or chives, or even mix in some grated Parmesan cheese for an extra burst of flavor. The possibilities are endless, making this recipe a versatile and crowd-pleasing side dish for any occasion.

Recipe Card

Make‑Ahead Herb‑Roasted Garlic Mashed Potatoes Recipe

40
Total Time (minutes)
20
Prep Time (minutes)
8-10
Servings

🛒 Ingredients

  • - 4-5 large potatoes, peeled and chopped into 1-inch cubes
  • - 2 heads of garlic, separated into individual cloves
  • - 2 tablespoons olive oil
  • - 1 teaspoon dried thyme
  • - 1 teaspoon dried rosemary
  • - 1 teaspoon salt
  • - 1/2 teaspoon black pepper
  • - 2 tablespoons unsalted butter, softened
  • - 1 cup heavy cream or half-and-half
  • - 1/4 cup grated cheddar cheese (optional)

👨‍🍳 Instructions

1

Roast the Garlic: Preheat your oven to 400°F (200°C). Cut the top off each head of garlic, drizzle with olive oil, and wrap in foil. Roast for 30-40 minutes or until cloves are tender and mashed easily.

2

Boil the Potatoes: Place the chopped potatoes in a large pot and add enough cold water to cover them. Bring to a boil over high heat, then reduce the heat to medium-low and simmer for 15-20 minutes, or until the potatoes are tender when pierced with a fork.

3

Mash with Herb‑Roasted Garlic and Cream: Drain the potatoes and return them to the pot. Add the roasted garlic, thyme, rosemary, salt, and pepper. Mash the potatoes with a potato masher or a fork until they're mostly smooth. Gradually add the softened butter, heavy cream, and grated cheddar cheese (if using), continuing to mash until the potatoes are silky and creamy.

4

Refrigerate and Reheat: Transfer the mashed potatoes to a serving dish, cover with plastic wrap or aluminum foil, and refrigerate for up to 24 hours. On the day of serving, reheat the potatoes in the oven at 350°F (175°C) for about 20-25 minutes, or until warmed through.

Ingredient Notes & Substitutions

Potatoes

For the best results, use high-starch potatoes like Russet or Idaho. These will yield a light, fluffy texture.

Substitutions: If you can't find Russet or Idaho potatoes, you can use other high-starch potatoes like Yukon Gold. However, avoid using waxy potatoes like Red Bliss or New Potatoes, as they will result in a gluey texture.

Garlic

Roasting garlic brings out its natural sweetness and deepens its flavor. For an even more intense flavor, you can roast the garlic a day ahead and store it in the refrigerator overnight.

Substitutions: If you're short on time, you can use 2-3 cloves of raw garlic, minced, instead of roasted garlic. However, keep in mind that the flavor will be less rich and complex.

Pro Tips for Perfect Mashed Potatoes

💡 Choose the Right Potatoes

Select high-starch potatoes for light, fluffy mashed potatoes. Avoid waxy potatoes, which will result in a gluey texture.

🥔 Don't Over-Mix

Mix the potatoes just until they're combined with the butter, cream, and seasonings. Over-mixing can lead to gluey, unappetizing mashed potatoes.

Variations & Customizations

Cheddar and Chive Mashed Potatoes

Add 1/2 cup grated cheddar cheese and 2 tablespoons chopped chives to the mashed potatoes for an extra burst of flavor.

Roasted Garlic and Rosemary Mashed Potatoes

Increase the amount of roasted garlic to 3-4 heads and add 2 sprigs of fresh rosemary, chopped, to the mashed potatoes for a more intense, herby flavor.

Serving Suggestions & Pairings

🍽️ Best Served With:

  • Roasted turkey breast, perfectly glazed and golden brown
  • Green bean casserole, made with fresh green beans and crispy fried onions
  • Sweet potato casserole, topped with a crunchy marshmallow-strewn brown sugar crust

🍷 Drink Pairings:

A dry white wine, such as Pinot Grigio or Sauvignon Blanc, pairs perfectly with the savory flavors of the herb-roasted garlic mashed potatoes.

Make-Ahead Instructions & Storage

📅

Make-Ahead Tips

Prepare the herb-roasted garlic mashed potatoes up to 24 hours in advance. Refrigerate, covered, and reheat in the oven at 350°F (175°C) for 20-25 minutes, or until warmed through.

🧊

Refrigerator Storage

Store the mashed potatoes in an airtight container in the refrigerator for up to 3 days. Reheat in the oven or on the stovetop until warmed through.

❄️

Freezer Storage

Transfer the cooled mashed potatoes to an airtight container or freezer bag. Label and date the container, and store in the freezer for up to 2 months. Reheat in the oven or on the stovetop until warmed through.

Troubleshooting & Common Questions

Q: My mashed potatoes are too gluey. What can I do?

A: Over-mixing can cause gluey mashed potatoes. Try adding a little more butter or cream to loosen the texture. If the problem persists, start over with a new batch of potatoes.

Q: Can I make these mashed potatoes in advance and freeze them?

A: Yes, you can make the mashed potatoes up to 2 days in advance and refrigerate or freeze them. Reheat in the oven or on the stovetop until warmed through.

Final Thoughts

With this make-ahead herb-roasted garlic mashed potatoes recipe, you'll have one less thing to worry about on the day of your Thanksgiving feast. The combination of roasted garlic, fresh herbs, and creamy butter will make your guests swoon, and the fact that it can be prepared ahead of time will make it a stress-free addition to your holiday menu.

So go ahead, give this recipe a try, and enjoy the oohs and aahs from your family and friends as you bring this delicious side dish to the table. Happy cooking, and happy Thanksgiving!

Chef's Rating
Liam Croft
Liam Croft

Nov 17, 2025

4.0

Made Make-Ahead Herb-Roasted Garlic Mashed Potatoes turned out creamy, fragrant. Tested the mash, the potatoes were buttery smooth, the roasted garlic gave a warm aroma that filled the kitchen. I added a splash of olive oil to keep the mash silky and fluffy after reheating. Four stars because it’s a new Thanksgiving staple, though I wish the herb mix was a touch brighter.

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