Keto Cauliflower Soup with Rosemary Oil

Keto Cauliflower Soup with Rosemary Oil

Keto Cauliflower Soup with Rosemary Oil

Keto Cauliflower Soup with Rosemary Oil

Geri Terry
It's fall, which means soups are a must. Low carb cauliflower and fragrant rosemary, our Keto Cauliflower Soup with Rosemary Oil is the perfect meal for fall.
5 from 1 vote
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Course Soup


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  • Rub garlic head with olive oil and cover with foil.  Roast in the oven for 40-50 minutes, till caramelized. Set aside.
    Keto Cauliflower Soup with Rosemary Oil
  • How to make the rosemary oil: In a medium skillet, combine the olive oil and rosemary sprigs. Cook over low heat for 5 minutes, lowering the heat if the oil reaches a full simmer (You want to cook it at a very gentle simmer to avoid frying the rosemary). Carefully pour the oil and the rosemary into a small bowl, leaving a slick of oil in the pan if you plan to make croutons. Allow the rosemary to cool completely in the oil while you make the soup.
    Keto Cauliflower Soup with Rosemary Oil
  • How to make the soup: In a heavy pot or Dutch oven, heat 2 tablespoons olive oil over medium-low. Add the onion and cook, stirring occasionally, until tender and translucent- about 6 to 8 minutes. Squeeze the head of garlic into the pan, breaking it up with a fork, and cook about 30 seconds.
    Keto Cauliflower Soup with Rosemary Oil
  • Add the stock, cauliflower, salt, and pepper, and bring to a boil over high. Lower the heat, cover, and simmer until the cauliflower is tender when pierced with a fork, about 10 minutes.
  • Meanwhile, make the optional croutons: Heat the reserved skillet with the residual rosemary oil over medium. Add the bread cubes, sprinkle generously with salt and pepper, and cook, tossing often, until toasted all over, 4 to 5 minutes. Transfer the croutons to a plate or board to cool.
    Keto Cauliflower Soup with Rosemary Oil
  • Strain and discard the rosemary stems from the rosemary oil. Working in batches if necessary, carefully transfer the vegetables, stock, and 1/4 cup rosemary oil to a blender and blend on high until creamy. Add more rosemary oil to taste, and blend to combine. Return the soup to the pot and bring to a simmer. If the soup seems thin, let it simmer for 5 to 10 minutes to reduce slightly. (Remember: The soup will continue to thicken as it cools.) Season to taste with salt and pepper.
  • Serve hot. Garnish each serving with a swirl of rosemary oil, a few croutons, and a sprinkle of lemon zest. The soup will thicken as it sits; add more stock as necessary when reheating. Leftover rosemary oil will keep in a sealed container at room temperature for up to 1 week.
    Keto Cauliflower Soup with Rosemary Oil


*Adapted from the New York Times 
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This Keto Cauliflower Soup with Rosemary Oil is a keto-friendly recipe.

Aunt Ger is our head Chef behind Ketonia, responsible for creating the delicious Ketonia products you know and love. 

As a veteran french pastry chef, Geri strives to create delicious and keto-friendly recipes that are so good you won’t believe they’re low carb. Her passion for authentic food stems from her deep belief that you should love everything you eat. For Geri, Keto foods are no exception. From day one, Ketonia has had a commitment to creating the absolute best tasting and best for you keto food. So get your forks ready as mother-son team Geri and John take you on a keto culinary journey like you’ve never been on before!

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