Sweet Potato and Onion Mash

Sweet Potato and Onion Mash is one of my favorite parts of a big holiday meal. This recipe is Vegan, Gluten-free and Nut-free.
I love Thanksgiving dinner because of all the delicious side dishes you only seem to get when the turkey is served. At Casa Kwong Hing we take our sides very seriously!
If you are serious about side dishes like my family is, check out our gluten-free side dishes roundup.
So on our table, you will always find two kinds of mash: the traditional creamy mashed potato and mashed sweet potatoes with caramelized onions. Why so much mash?
Inventing the mashed sweet potatoes with caramelized onions
Like me, my dad has developed a lot of food allergies with age, one being potatoes. Mashed potatoes were always a highlight of the holidays, but all of a sudden we needed to find a delicious alternative.
That’s when this sweet potato and onion mash was invented. And let’s just say, we didn’t miss regular potatoes one bit that Thanksgiving.
Savory sweet potato and onion mash are sophisticated
Now we rarely serve traditional mash because we’ve all become sweet potato lovers. Sweet potatoes are such a versatile root vegetable. They can be used in so many unique ways. Here are some more ideas on how to use them so that you too will fall in love with the sweet potato.
This recipe is not only savory but brings a sophisticated edginess to the dinner table (um hmmm). It combines the sweetness of roasted sweet potato with the richness of caramelized onions.
Easy caramelized onion sweet potato recipe
If you are looking to bring something new to your Thanksgiving table, I highly suggest this top 9 free caramelized onion sweet potato recipe. And it’s super easy to make with only five ingredients!
Want to add a little green with your orange (my two favourite food color pairings)? I highly recommend Accidentally Crunchy’s Easy Roasted Brussel Sprouts that are also vegan and top 9 free.
Have a wonderful Thanksgiving my fellow Canadians and happy menu planning to my American friends out there!
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Sweet Potato and Onion Mash
- Author: Kortney
- Total Time: 1 hour
- Yield: 6–8 (as a side dish) 1x
- Diet: Vegan
Description
Recipe comes from Brenda Kwong Hing (my mom)
Sweet Potato and Onion Mash is a perfect side dish for Thanksgiving dinner. Only five ingredients! Dairy free, nut free, soy free, top 9 free.
Ingredients
- 3 medium Sweet Potatoes – cut in half lengthwise (roughly 20cm by 7cm)
- 1/2 large White Onion – thinly sliced (approximately 2 cups)
- 2 tbsp Olive Oil
- 1.5 tsp Fresh Rosemary – finely chopped and divided into 1 tsp and 0.5 tsp
- 1 tbsp Balsamic Vinegar
- Salt and pepper to taste
Instructions
- Wrap sweet potato pairs in tin foil and bake at 475° for 30-35 minutes, until soft.
- In a large pan or wok add onions and olive oil. Cook over medium-high heat. You want to continuously stir the onions, so they do not burn. When the onions are starting to soften, add 1 tsp of rosemary and balsamic vinegar. Turn the heat to medium and continue to stir the onions until they are caramelised, around 20 minutes. The onions will have halved in quantity and be slightly sticky. Take off heat and set aside.
- When the potatoes are done, remove flesh from skin and place in a large bowl. Mash the potatoes using a fork.
- Mix the caramelised onions and remaining rosemary into the sweet potatoes. If the mash feels dry, add a little more olive oil.
- Add salt and pepper to taste.
- Prep Time: 15 minutes
- Cook Time: 45 minutes
- Category: Sides
- Method: Boil and Cook
- Cuisine: Side Dish
Keywords: sweet potatoes, sweet potato mash, vegan sweet potatoes, holiday sides
More recipes with sweet potatoes
Kortney is your typical atopic triad who manages asthma, eczema and multiple food allergies. Kortney is a co-creator of the online community Allergy Travels and co-host of The Itch Podcast. She wants to spread joy in a community that can easily see the hard side of life with atopic disease and believes that you can have a full life with food allergies, it may just be lived a little differently!
Mmmmm anything potato and of course anything creamy and mashed is always a winner!
Love the idea of adding the onions, I bet these have so much flavor!
Adding the onions is genius! Makes such a big difference in flavor!
The addition of the caramelized onions makes this sound phenomenal! These steps are easy too, I’ve never been able to caramelize good onions.
Thanks Gorgianna! I have found the trick to caramelising onions is time and lots of stirring 😀
this looks amazing! You combined my two favorite things in the world- sweet potatoes and sweet onions. ((LOVE))
Thanks Ann! That’s so sweet of you to say 😀
Simple and tasty – perfect!
This side dish sounds so delicious, Kortney. I am a huge fan of both caramelized onions and sweet potatoes, although I never thought of combining these two ingredients – brilliant! Thank you for the inspiration 🙂 Happy Thanksgiving – I am going to add your recipe to my menu.
I hope your family enjoys it. It’s a fun addition to the Thanksgiving menu 😀
I love caramelized onions! This looks like a simple and delicious side dish, I’m going to pin this for later 🙂
Thanks Shareba! I always find it looks fancy, but is actually easy to make 😛
I’m always looking for different ways to serve up sweet potatoes and this simple mash looks and sounds perfect! YUMMY!
Thanks Marisa. 🙂