Roasted Garlic Mashed Potatoes

By: Barbara Updated on Tue, 22 Apr 2025 16:36:32 GMT Perfect Sides
Barbara, recipe developer and home cook at Graceful Flavors
Barbara

Hi, I'm Barbara, the recipe developer and home cook behind Graceful Flavors. I share approachable recipes with clear steps, familiar ingredients, and delicious results for real everyday kitchens.

Updated on Tue, 22 Apr 2025 16:36:32 GMT

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A bowl of mashed potatoes with green herbs. Pin it
A bowl of mashed potatoes with green herbs.

This roasted garlic mashed potato recipe transforms the humble spud into a creamy, aromatic side dish that will steal the spotlight at any dinner table. The slow-roasted garlic adds a mellow, nutty sweetness that elevates these potatoes beyond the ordinary, creating something truly memorable that your guests will rave about.

I first made these mashed potatoes for a Thanksgiving dinner when I was terrified of hosting my in-laws. The garlic aroma filled the house and immediately broke the ice everyone was oohing and aahing before the dish even hit the table.

Ingredients

  • Whole garlic head: the star of the show that transforms from pungent to sweet when roasted
  • Red potatoes: their waxy texture and thin skins create the perfect creamy yet slightly chunky consistency
  • Olive oil: helps the garlic roast to golden perfection
  • Kosher salt: enhances all the flavors without tasting overly salty
  • Butter: creates richness and silky texture
  • Half and half: the perfect balance between milk and cream for luxurious potatoes
  • Fresh ground pepper: adds a subtle heat that balances the sweetness of the roasted garlic

Step-by-Step Instructions

Roast the Garlic:
Cut off the top quarter inch of a whole garlic head to expose the cloves inside. Place the garlic on a piece of foil and drizzle with olive oil, making sure it seeps between the cloves. Wrap the foil tightly around the garlic and place in a 375°F oven for about an hour. The kitchen will fill with an incredible aroma as the garlic transforms from sharp and pungent to mellow and sweet. The cloves should be golden brown and so soft you can squeeze them out of their papery skins with gentle pressure.
Boil the Potatoes:
Place quartered red potatoes in a large pot and cover with cold water – never hot which can lead to uneven cooking. Add a generous teaspoon of kosher salt to the water – this seasons the potatoes from the inside out. Bring to a boil, then reduce to a simmer for about 15 minutes. Test for doneness by inserting a fork – the potatoes should yield easily but not fall apart completely.
Prepare for Mashing:
Drain the potatoes thoroughly in a colander, then return them to the still warm pot. The residual heat will help evaporate excess moisture, preventing soggy potatoes. Squeeze the roasted garlic cloves directly into the pot with the potatoes – they should slide right out of their skins.
Create Creamy Texture:
Warm the half and half and butter together until the butter melts completely. This crucial step ensures your potatoes stay hot and the dairy incorporates smoothly. Pour this mixture over the potatoes and garlic, season with salt and pepper, then mash with a potato masher. Work quickly but gently, mashing just until you achieve a creamy texture with some small lumps for character. Overmashing can make potatoes gluey.
A bowl of mashed potatoes with green herbs.
A bowl of mashed potatoes with green herbs.

The first time I served these potatoes to my childhood friend who claimed to hate garlic, she asked for seconds and then demanded the recipe. That moment taught me that properly cooked garlic can convert even the strongest skeptics. Now I make a double batch of roasted garlic just to have extra for spreading on bread or adding to other dishes.

Make Ahead Magic

These mashed potatoes reheat beautifully, making them perfect for busy holiday meals. Prepare them up to two days in advance, store in an airtight container in the refrigerator, then reheat in a covered baking dish at 350°F for about 30 minutes. Add a splash of cream and dot with butter before reheating to refresh the texture. The flavors actually develop and improve with time, making this one of those rare dishes that tastes even better the next day.

A bowl of mashed potatoes with herbs.
A bowl of mashed potatoes with herbs.

Variations To Try

Change up these potatoes based on what you have on hand. Yellow Yukon Gold potatoes create an even more buttery result. For a dairy free version, substitute olive oil for butter and use unsweetened almond milk in place of half and half. You can add other roasted vegetables like parsnips or cauliflower to the potatoes before mashing for additional flavor dimensions. Fresh herbs like chives, rosemary, or thyme make wonderful additions stirred in just before serving.

Perfect Pairings

These garlic mashed potatoes complement virtually any protein. They shine alongside a holiday turkey or ham, but are equally delicious with a simple roasted chicken or grilled steak. For vegetarians, serve with roasted vegetables and a rich mushroom gravy. The subtle sweetness of the roasted garlic pairs particularly well with slightly bitter greens like Brussels sprouts or kale. For a complete comfort food experience, serve alongside meatloaf with a side of green beans.

Frequently Asked Questions

How do you roast garlic perfectly?

Cut the top off the garlic head, drizzle with olive oil, and wrap in foil. Roast at 375°F for about an hour until soft and golden.

Which type of potatoes work best?

Red potatoes are ideal due to their creamy texture, but Yukon Gold also works well for mashed potatoes.

Can I make this ahead of time?

Yes, you can prepare the mashed potatoes in advance. Reheat gently on the stovetop or microwave while adding a splash of cream if needed.

Can I use different herbs for garnish?

Absolutely! Fresh parsley, chives, or thyme are great options to elevate the flavor profile of your mashed potatoes.

How do I achieve the perfect creamy consistency?

Warm the butter and half and half before adding to ensure they blend smoothly, and mash the potatoes gently to maintain some texture.

4.50 from 126 votes

Roasted Garlic Mashed Potatoes

Prep Time:
15 Minutes
Cook Time:
75 Minutes
Total Time:
90 Minutes
Servings:
6
A bowl of mashed potatoes with green herbs.

Creamy mashed potatoes with roasted garlic and butter, the perfect comfort side.

Ingredients

  • Main Ingredients

  • 1 head garlic
  • 1 tsp olive oil
  • 2 pounds red potatoes, washed and cut into quarters
  • Kosher salt, to taste
  • 6 tablespoons butter
  • 3/4 cup half and half
  • Fresh ground pepper, to taste

Instructions

1.

1. Roast the garlic: Cut the top 1/4 inch off of the garlic head. Wrap it in foil and drizzle olive oil over the garlic. Close the foil around the garlic and roast in the oven at 375°F for about an hour. The garlic will be very soft and golden when done. When ready to use, squeeze the garlic cloves out of the skin.

2.

2. Cook the potatoes: Place the potatoes in a large pot or Dutch oven and cover with cold water. Add 1 tsp salt and bring to a boil. Simmer for 15 minutes or until fork-tender.

3.

3. Mash the potatoes: Drain the potatoes and return to the pot along with the roasted garlic cloves. Gently warm the half and half and butter until the butter is melted. Add to the pot with the potatoes and garlic, then season with salt and pepper. Mash until the mixture reaches a creamy consistency with some lumps.

4.

4. Garnish and serve: Garnish the mashed potatoes with fresh herbs and additional butter, then serve.

Tools You'll Need

  • Large pot or Dutch oven
  • Aluminum foil
  • Potato masher or fork

Allergy Information

Please check ingredients for potential allergens and consult a health professional if in doubt.
  • Dairy (butter, half and half)

Nutrition Facts (Per Serving)

It is important to consider this information as approximate and not to use it as definitive health advice.
  • Calories: 259
  • Total Fat: 16 g
  • Total Carbohydrate: 27 g
  • Protein: 4 g