Garlic/ Potato/ Sides

Roasted Garlic Sweet Potato Mash

December 21, 2017 (Last Updated: December 27, 2019) by Chris Collins

Roasted Garlic Sweet Potato Mash is the ultimate way to serve mashed sweet potato. A soul-hugging balance of flavours which couldn’t be easier to make!

I think it’s safe to say if you’ve been following along with my recipes for a while now, you’ve realised my love for sweet potatoes is absolutely bonkers. It was only the other day I uploaded the Sweet Potato Breakfast Skillet and miraculously I still had 2kg of sweet potatoes lying about. Yes, I have a problem.

Roasted Garlic Sweet Potato Mash with Rosemary

In this instance however it’s not the sweet potatoes themselves that send my taste buds into a frenzy, but more the addition of roasted garlic and how they complement each other so beautifully.

Guys, if you’ve never roasted garlic before your life is about to change. Roasting actually gives a hugely different taste to raw or even fried garlic. It turns sweet and caramelized, with the usual pungent flavour of garlic turning very gentle and soft. What’s better, it goes with literally everything, from soups and dips to chicken marinades and mac ‘n’ cheese. I even spread it on toast! But most importantly, we are gathered here today to discuss its role in roasted garlic sweet potato mash.

Roasting garlic couldn’t be easier. From roasting enough garlic to kill off an army of vampires, I’m happy to show ya’ll exactly how I feel is the best way to roast garlic.

The answer is garlic-rosemary burger.

Roasted Garlic Sweet Potato Mash - Roasting Garlic

How to roast garlic in the oven

  1. Simply slice a bulb of garlic through the centre, ensuring the cloves don’t fall out of the bulb.
  2. Add a drizzle of olive oil and chuck a sprig of rosemary inside to form a mini garlic-rosemary burger.
  3. Wrap in foil and pop in the oven until soft and caramelized.

Simple right? The oil will simply protect the cloves from burning and produce a beautiful glaze. As the garlic roasts, that rosemary is going to infuse and take the flavour through the roof. This is simply THE best way to roast garlic.

When you add that to the mashed sweet potato? UGH. So so good.

By this point your kitchen is going to smell absolutely freaking gorgeous. And of course I like to take things further by adding bacon, because everything’s better with bacon.

Mashed Sweet Potatoes with Roasted Garlic with Bacon

Also you see that tiny pot, initially I planned to eat that. A fair size portion for one I’d say. Nope, face planted the large baking dish and didn’t come up for air. *sighs* The power sweet potato has on me is borderline out of control.

Let’s take a quick look at what ingredients you’ll need shall we?

Mashed Sweet Potatoes with Roasted Garlic Ingredients

  • Sweet Potatoes
  • Roasted Garlic
  • Butter
  • Sour Cream
  • Cinnamon
  • Salt & Pepper

Oh yeah, the bacon on top 😂 I was making pigs in blankets and had leftover bacon. Turns out some crispy bacon with the leftover rosemary from the roasted garlic turns out STUNNING when plonked on top of sweet potato mash. Highly recommend 🙃

Other delicious and easy Sweet Potato Recipes you’ll love

Whether it’s to accompany your Sunday roast or a midweek dinner, roasted garlic sweet potato mash is here to take every meal from a 9 to a 10. The flavour combo of this dish is out of this world and your guests are sure to agree.

Roasted Garlic and Sweet Potato Mash with Parsley and Bacon

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How to make Roasted Garlic Sweet Potato Mash (Full Recipe & Video)

Roasted Garlic Sweet Potato Mash with Rosemary

Roasted Garlic Sweet Potato Mash

Roasted Garlic Sweet Potato Mash is the ultimate way to serve mashed sweet potato. A soul-hugging balance of flavours which couldn't be easier to make!
5 from 3 votes
Print Pin Rate
Course: Side Dish
Cuisine: Sunday Roast
Prep Time: 10 minutes
Cook Time: 45 minutes
Total Time: 55 minutes
Servings (click & slide): 8
Calories: 286kcal

Ingredients (check list):

Roasted Garlic

  • 2 small Bulbs of Garlic
  • 2 sprigs Fresh Rosemary


  • 4.4lbs / 2kg lbs Sweet Potatoes, peeled & sliced into chunks
  • 3 tbsp Butter
  • 2/3 cup / 150ml Sour Cream
  • 1/4-1/2 tsp Ground Cinnamon
  • Salt & Pepper, to taste

Extras & Optionals

  • Crispy Bacon


  • Preheat oven to 180c (356f).
  • Slice your Garlic Bulbs in half, drizzle with a little Olive Oil and place your Rosemary in the center - just like a mini garlic rosemary burger.
  • Wrap in foil and place in the oven for approx 45-60mins mins or until soft and caramelized.
  • Meanwhile, boil your Sweet Potatoes until easily sliced with a knife.
  • Mash in your Butter, Garlic, Cinnamon, Salt and Pepper.
  • Stir in your Sour Cream until smooth and creamy.
  • Serve with any additional toppings.

Quick 1 min demo!


a) To remove the garlic simply squeeze the bulbs and it will slide out. Be carefulย the flaky skin doesn't fall into the mash.
b) Be generous with your salt and taste test throughout. Sweet potatoes as the name suggests are very sweet, so it's good to balance that out with a generous helping of salt.
c) Save your rosemary from the roasted garlic, finely diced it and sprinkle over the mash so it doesn't go to waste ๐Ÿ™‚


Nutrition Facts
Roasted Garlic Sweet Potato Mash
Amount Per Serving
Calories 286 Calories from Fat 59
% Daily Value*
Fat 6.52g10%
Saturated Fat 4.061g20%
Trans Fat 0.175g
Polyunsaturated Fat 0.287g
Monounsaturated Fat 1.722g
Cholesterol 18mg6%
Sodium 155mg6%
Potassium 903mg26%
Carbohydrates 53.19g18%
Fiber 7.7g31%
Sugar 10.52g12%
Protein 4.93g10%
Vitamin A 76300IU1526%
Vitamin C 8.3mg10%
Calcium 110mg11%
Iron 1.6mg9%
* Percent Daily Values are based on a 2000 calorie diet.
Nutrition is based on the absence of salt unless stated as a measurement in the ingredients. Cost is worked out based on ingredients bought from UK supermarkets, then divided by the number of servings. In both instances these values are just for guidance. Please check out my FAQ Page for more info.
Tried this recipe?Show me how you got on by tagging @dontgobaconmyheart_ on IG and #dontgobaconmyheart!

For more sweet potato goodness check out my Loaded Sweet Potatoes!

Loaded Sweet Potatoes served with rocket

If you loved this Sweet Potato Mash recipe be sure to pin it for later! Already made it or got a question? Let me know in the comments below and pick up your free ecookbook along the way!


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  • Reply
    December 22, 2017 at 3:00 pm

    5 stars
    I always think of sweet potatoes in sweet dishes. I bet it is delicious as a savory dish with garlic too! Will have to try!!

    • Reply
      December 22, 2017 at 3:03 pm

      You definitely should! So great as mash ๐Ÿ™‚

  • Reply
    December 22, 2017 at 1:10 pm

    5 stars
    Now this is my kind of sweet potato — nary a marshmallow in site! Lovely!

    • Reply
      December 22, 2017 at 1:12 pm

      Thanks, Lisa!! ๐Ÿ™‚

  • Reply
    Kristen Chidsey
    December 22, 2017 at 12:40 pm

    5 stars
    You are after my heart–I always have sweet potatoes in my house and could eat them breakfast lunch and dinner. And a simple garlic mash is always welcome to dinner!

    • Reply
      December 22, 2017 at 12:48 pm

      So glad agree, Kristen!! ๐Ÿ™‚

  • Reply
    December 22, 2017 at 12:39 pm

    What a great alternative to mashed potatoes. I roast garlic often and this is a great way to use it.

    • Reply
      December 22, 2017 at 12:47 pm

      Thanks Ellen! ๐Ÿ™‚

  • Reply
    December 22, 2017 at 12:26 pm

    I love the idea of the garlic rosemary burger, I roast garlic all the time but I’ve never done it with herbs.

    • Reply
      December 22, 2017 at 12:46 pm

      So tasty with Rosemary! Also, can we be best friends because bacon is magic?

  • Reply
    December 22, 2017 at 2:02 am

    Looking at your photos is almost as good as trying your recipes which I always am happy with.

    • Reply
      December 22, 2017 at 12:13 pm

      Thank you for your kind words, Linda! Have a wonderful Christmas ๐Ÿ™‚

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