Food / Side Dishes / Vegetarian

Roasted Garlic Mashed Potatoes With Rosemary

Big buttery bowl of mashed potatoes with roasted garlic and rosemary.

Smooth and creamy mashed potatoes. Once upon a time, I assumed they were universally loved. That is until I met my potato-loathing husband. (Freak.) Last night, as I slapped these glorious roasted garlic mashed potatoes with rosemary onto my plate—next to my garlicky green beans and surf’n turf—I thought back on the days where I’d dejectedly pass by the potatoes at the market. I’m so glad I eventually decided that hey, I can make mashed potatoes FOR MYSELF.

I can’t imagine a comforting holiday meal without a pile of buttery, gravy-soaked mashed potatoes. And with Thanksgiving just around the corner, visions of fluffy gravy volcanos danced in my head.

Bulb of roasted garlic with fresh rosemary sprigs.

Saucepan full of melted butter and fresh rosemary.

Roasted Garlic Mashed Potatoes With Rosemary.

Growing up, mashed potatoes were pretty basic—but deliciously basic. My mum always had a healthy balance of protein, veg, and carbs for our plates. Those carbs were usually in the form of mashed potatoes. She’d smash butter, milk, salt, and pepper into those taters and call it a day. And I don’t blame her. It was quick, easy, and delicious.

But after a few meals at bougie steak houses, I’ve grown to fall head over heels for the rich flavor of roasted garlic mashed potatoes. Add to it some warming and herbaceous rosemary, and you have mashed potatoes that taste like they’re meant for the cooler months.

I find that whisking the freshly chopped rosemary into the melted butter and bringing it to a simmer does wonders for flavor. Plus, who wants to bite into a raw rosemary sprig? (Nobody.)

Boiled potatoes with ingredients, before being mashed.

For a healthier dose of creaminess, I skip the cream cheese and sour cream and opt for plain Greek yogurt. But you can use any of the three. I always have a tub of plain Greek yogurt on hand for things like this. The texture and tanginess is perfect for mashed potatoes.

If you have a food mill you could always run your boiled potatoes through it and then add your other ingredients prior to mixing. Or, add everything to your boiled potatoes and mash away until you get to your desired consistency. I do have a food mill, but I base my decision on whether or not I have the energy to clean an extra kitchen gadget after dinner ;)

Big buttery bowl of mashed potatoes with roasted garlic and rosemary.

If you make this dish, snap a photo and tag me on the Insta @killing__thyme! I love seeing your creations, and you could be featured in my monthly newsletter <3

5 from 14 votes

Roasted Garlic Mashed Potatoes With Rosemary

These creamy Roasted Garlic Mashed Potatoes With Rosemary are full of rich and herbaceous flavors, and they're perfect side for any holiday dinner. 
Course Side Dish
Keyword comfort food, garlic, mashed potatoes, rosemary, Side dish, yukon gold
Prep Time 10 minutes
Cook Time 40 minutes
Total Time 50 minutes
Servings 6
Author Dana Sandonato


  • 1 small bulb of garlic
  • 1 tsp olive oil
  • 6 yukon gold potatoes, peeled and quartered
  • 1/2 tsp kosher salt
  • Cracked black pepper
  • 3 TBSP butter
  • 1 TBSP freshly minced rosemary
  • 1/3 cup half and half or milk
  • 2 TBSP plain Greek yogurt
  • Chopped fresh parsley or chives and extra butter, to garnish and finish


  • You'll want to start roasting the garlic 25 minutes before boiling your potatoes.
    Heat oven to 375ºF. Peel any extra skin off of the garlic bulb leaving only the last outer later of skin (you want to keep the bulb intact). Place the bulb onto a sheet of tin foil (about the size of a dinner plate), and drizzle a bit of olive oil over it. Bring bring the foil together over the garlic bulb to create a tent. Pinch a few edges to secure the tent, and bake for 40 minutes or until the garlic cloves are golden brown and nicely roasted. (Check on it at 25-30 minutes.) When done, remove the bulb from the oven and set aside to cool.
  • Place your peeled and quartered potatoes into a large pot and cover them with cold water. Add a pinch of salt. Place the pot over medium-high heat and bring the potatoes to a boil. Once boiling, bring the heat down to medium-low, cover, and simmer for 15-20 minutes or until the potatoes are fork tender.
  • When the potatoes are ready, drain them, and place them over medium-low heat. Let them sizzle for a few moments to remove any excess moisture. Then, remove from heat.
  • In a separate saucepan, melt 3 TBSP of butter. Add the chopped rosemary, bring the butter to a low simmer, and whisk for about 30-40 seconds to let the rosemary soften up and infuse the butter with some flavor. Remove from heat.
  • Squeeze all of the roasted garlic from their bulb into the pot with the potatoes. Then add the salt, pepper, rosemary butter, half and half, and Greek yogurt. Mash with a potato masher until you get the consistency that you desire. Add extra splashes of half and half or some extra Greek yogurt as needed. 
  • Transfer the mashed potatoes to a serving dish, top with fresh chopped parsley or chives, and a few knobs of butter for extra buttery goodness.


If you have a food mill, you can run your potatoes through it to get the creamiest consistency. After running your potatoes through the food mill, you can then add the rest of the ingredients for mixing.
Big buttery bowl of mashed potatoes with roasted garlic and rosemary (PIN)


  • […] Roasted Garlic Mashed Potatoes with Rosemary […]

  • […] Killing Thyme […]

  • […] the roast turkey over a bed of these Roasted Garlic Mashed Potatoes With Rosemary by Killing Thyme. These potatoes are absolute perfection. They are deliciously creamy and full of seasonal […]

  • […] matter how much we love those carb-y sides, there’s no denying that the turkey is the holiday centerpiece. And the pressure to make it […]

  • […] Absolutely no Thanksgiving would be complete without potatoes – whether mashed, roasted, or fried. Potatoes are usually vegetarian, which is why I only put one recipe for them on this list. For me, the creamier (more butter), and the chunkier (not all the way mashed), the better. Find the recipe at Killing Thyme. […]

  • Christina Shoemaker
    November 28, 2018 at 9:25 am

    5 stars
    Oh my goodness roasted garlic makes everything better!! This looks perfectly creamy and rich! Can’t wait to try this for myself!

  • Donna
    November 27, 2018 at 10:49 pm

    5 stars
    Ummm I am salivating over here! I make garlic mashed potatoes all the time, but this version just kicks it up a notch, and it’s a notch I am liking very much. I love the additional step of roasting the garlic, I can imagine it adds so much more flavor!! My hubby also won’t eat potatoes, not because he doesn’t like them but because he doesn’t like to eat carbs – weirdo!!

  • Amanda
    November 27, 2018 at 6:26 am

    5 stars
    Well hello, gorgeous! I’m pretty sure my primary weakness in life is mashed potatoes. I could make an entire meal out of a bowl, in all of their creamy gloriousness. These are some special potatoes, right here. I absolutely love the subtle sweetness and depth of flavor of roasted garlic, and rosemary is so perfect for the season. Great idea to swap out Greek yogurt for cream cheese or sour cream! The overstressed button on my jeans this time of year thanks you! :)

  • Kirsten/ComfortablyDomestic
    November 26, 2018 at 8:52 pm

    5 stars
    Wait. You married a man that doesn’t care for potatoes?! I’m sure he has many other redeeming qualities. ;) I love a good pile of mashed potatoes. Your method of simmering the rosemary in melted butter is brilliant! That has to bring out so much flavor. When it comes to mashing, I skip the food mill simply to avoid doing more dishes.

  • Marisa Franca
    November 26, 2018 at 12:07 pm

    5 stars
    I can’t believe that there is a man out there who doesn’t like potatoes. It’s usually meat and potatoes and forget the veggies. Your roasted garlic mashed potatoes look amazing. Love the addition of the rosemary. That herb is one of our very favorites.

    • Penelope
      January 20, 2020 at 11:04 am

      My sweetheart held his nose at the suggestion of potatoes until I got him to try yellow Yukon potatoes. He had burned out on boring Idaho spuds. Yukons gave so much more flavor.
      Now he asks for potatoes as long as they are Yukons.

  • Traci
    November 26, 2018 at 10:25 am

    5 stars
    Every time I make mashed potatoes, I think to myself “I need to add roasted garlic to these!” And for some reason, it always happens like that LOL. After seeing your recipe, now I’m gonna think about that rosemary thang! Yum girl! I am bookmarking this recipe and putting up a big post-it note to remember to make yours next time I whip up some mashed potatoes. Thanks for the great idea :)

  • Mackenzie
    November 25, 2018 at 5:18 pm

    5 stars
    You are so right to add the rosemary to the butter. In my attempts to make a more gourmet mashed potatoes, I usually end up throwing something in willy-nilly and the flavor of the rosemary is always too harsh. This little step makes a huge impact without any extra effort.

  • Tina
    November 24, 2018 at 1:21 pm

    5 stars
    Hey, I married a freak too! More taters for us I guess. At first I avoided them because I thought it was silly to cook potatoes just for me but then later I decided I deserve mashed potatoes even if I’m the only one eating it. I have never tried rosemary before but I am game. I love the stuff, used to grow it in my garden in Texas where it balloons into 3 foot hedges. Thanks for this recipe!

  • Anne|Craving Something Healthy
    November 23, 2018 at 11:20 pm

    Perfect comfort food! Garlic + rosemary + potatoes are a match made in heave!

  • Carmy
    November 23, 2018 at 5:52 pm

    5 stars
    I am drooling over these potatoes! I’m starting to think I should celebrate both Canadian and American Thanksgiving so I can eat all the mash potatoes. I mean, who hates potatoes?! I’ll gladly take all the potatoes that is not wanted in your household that your husband doesn’t want haha.

  • Tina
    November 23, 2018 at 8:14 am

    5 stars
    These look delightful and super creamy! How can your husband not give in and give up to such potato goodness? Well, I’m super glad you treat yourself to this incredible dish. I’ve been looking for a new mashed potato recipe to try out and this one is going to be it.

  • Tracy
    November 21, 2018 at 2:21 pm

    5 stars
    How in the WORLD does your husband hate POTATOES?! Says me, the woman married to the husband who DESPISES coffee! ;P What weirdos we’re married to! Ha. I just adore the flavors of garlic and rosemary together but you know, have never put them in mashed potatoes! I can’t wait to make these for my potato loving husband!! :)

  • Lisa
    November 21, 2018 at 8:06 am

    5 stars
    Your husband LOATHES POTATOES? Heathen! I would not give up the spud for anyone — glad you’ve taken back your potato-love. The roasted garlic and rosemary sounds like a heavenly combo to me and they’ll go great with our Tom Turkey. I’m buying extra garlic and herbs today, just so I can do this. Perfection.

  • Gloria
    November 19, 2018 at 3:47 pm

    5 stars
    I am a total potato fanatic. These would be perfect for the holiday dinner table. You can never go wrong with delicious mashed potatoes as a side to any meal. The garlic takes this recipe over the top. YUM!!

  • Debra
    November 19, 2018 at 12:29 pm

    5 stars
    Those potatoes look so beautiful and creamy! That roasted garlic must make the house smell divine as well as the potatoes taste amazing. Love the rosemary flavor too.


Leave a Reply

Recipe Rating

This site uses Akismet to reduce spam. Learn how your comment data is processed.