Easy-Peasy Caramelized Onion Cauliflower Mash 

This is one of my favorite vegetable-based side dishes to make. It’s a great way to get more veggies in your diet, and it tastes amazing! The recipe calls for two simple ingredients: cauliflower and onions. You can use any kind of onion you want; I prefer yellow or white onions because they’re milder and sweeter than brown or red ones, but feel free to experiment with whatever you have on hand. 

How to make Caramelized Onion Cauliflower Mash: 

The caramelized onions and cauliflower mashes have a rich, earthy taste that is perfect for the fall season. The flavor of the vegetables leaves you feeling warm inside on those colder days when it’s too cold to leave your house.

how to make Caramelized Onion Cauliflower Mash  

The recipe is easy to make and can be served as a side dish. The mash would also taste great with any meat, so it’s perfect for dinner. It has the right amount of sweetness that complements almost anything you serve it with. This makes it one of my favorite dishes to prepare during this time of year because I know how much people love sweet flavors in their food even if they don’t realize what they’re doing! 


  • 1 head of fresh cauliflower 
  • 1/4 cup of good olive oil 
  • 2 cloves of cooked garlic (roasted works best, that’s what I used) 
  • 1/2 cup caramelized onions 
  • 1/2 tsp salt 
  • 1/4 tsp pepper 

Step by step Cooking Instructions 

Caramelized Onion Cauliflower Mash Recipe

  1. Cut the cauliflower into small pieces (about one inch)  
  2. In a medium saucepan, add olive oil and garlic. Let it cook for about three minutes until fragrant. 
  3. Add the cauliflower to the pot with salt and pepper, covering all of it in the mixture. Cook on high heat stirring occasionally so that every piece gets coated with oil and spices. For about 12 – 15 minutes or until tender but not overcooked this way you can control how soft they are as some people prefer them crispier than others). Add caramelized onions last before taking off from stovetop when done cooking to avoid burning them too much. 
  4. You can also substitute the cauliflower with potatoes, but make sure to cook them for a little bit longer because they take longer. 

l like we said earlier, most people prefer their onions crispier than others so feel free to adjust cooking time as needed (the key is watch the pot and stir every few minutes) until you get your desired results! ln addition, if you want thick mash then use less liquid in its place. If you’re looking for more of an onion gravy or sauce then add some stock or water at the end after removing from stovetop. And lastly always season again once done cooking before serving! Your taste buds will thank us later 😉 

Tips and tricks to making the perfect Caramelized Onion Cauliflower Mash 

How to make Caramelized Onion Cauliflower Mash

  • The trick to getting the onions perfect is patience. Cook them at a low medium heat for about 20 minutes, stirring every few minutes. This will make sure they’re caramelizing evenly and not burning on one side of the pot or cooking too quickly in some spots – this step takes time but it’s important! We recommend using butter instead of oil so that there are more browning reactions happening with the sugar in the onion as well as a creamier texture after mashing up all your ingredients together. 
  • You can also cook these either on top of another dish (like pasta) to save stovetop space for other things you might be making, or just wait until everything is done before adding it into your recipe when you need that extra little something. 
  •  Serve these with some fresh bread or potatoes on the side to round out your meal, and you’ll be ready for a cozy night in! 


I hope you enjoyed this Caramelized Onion Cauliflower Mash recipe. It is my favorite way to eat cauliflower and caramelizing the onions adds a whole new depth of flavor to it. If you are looking for more healthy recipes, be sure to check this recipe of How to Make Whole30 Aioli in 3 Ways, you won’t go wrong with it!

Jennifer Glover