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Keto Crack Cauliflower (Buttery Low-Carb Roasted Side Dish)

You might think that you’re sick of cauliflower or have tried it all, but this Keto-Crack Cauliflower is so good that you’ll fall in love with it all over again! Easy and delicious, this Keto Cauliflower recipe has it all!

Keto Crack Cauliflower on a serving dish.

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I’ve been making this one since long before cauliflower became the default keto vegetable, and it’s still the version I reach for when I want a side dish that can stand up to a heavier main. You can toss it together ahead of time and leave it in the fridge until the oven’s free, which makes it an easy add to a bigger dinner without extra last-minute work.

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Chef Jenn’s Take on Keto Crack Cauliflower

The mistake people make with roasted cauliflower is treating it like a bland vegetable that needs to be dressed up after it comes out of the oven. That’s backward. The flavor needs to go on before it roasts, so the butter and mustard can actually cook into the cauliflower instead of sitting on top of it.

One thing worth knowing ahead of time. Fresh garlic can turn slightly green once it sits in contact with lemon juice or wine. It looks strange the first time you see it, but it doesn’t affect the taste at all. A reader once asked if apple cider vinegar could replace the white wine, and I tried it myself. It works well, and it’s a solid option if you’d rather skip the wine entirely.

The other detail that matters is texture. Pull the cauliflower while it’s still got some bite left in it. Fork-tender and mushy are not the same thing, and cauliflower crosses that line fast in a hot oven.

What You’ll Love About Keto Crack Cauliflower

  • It roasts on one sheet pan, so the only cleanup is a mixing bowl and the pan itself.
  • You can toss the cauliflower in the sauce ahead of time and hold it in the fridge, which makes this an easy side to prep before company shows up.
  • It’s flavorful enough to serve alongside a plain protein without either one needing extra dressing up.

Ingredients

  • Cauliflower – A whole fresh head, cut into bite-sized florets. Frozen cauliflower releases too much water and won’t roast the same way.
  • Butter – Salted, melted. Adjust the added salt down slightly if you only have unsalted on hand.
  • Mustard – Dijon is the better pick here, but any yellow mustard will work if that’s what’s in the fridge.
  • White wine – Optional. A splash of apple cider vinegar works as a substitute if you’d rather skip the wine.
  • Garlic – Fresh garlic only. Jarred garlic won’t give the same clean flavor and can turn bitter when cooked.
  • Lemon juice – Fresh, just a small amount, added after roasting.
  • Salt and pepper – Season to taste.

How to Make Keto Crack CAuliflower

Scroll down for the full recipe card with exact measurements and printable instructions.

Preheat the oven to 425°F. Cut the cauliflower into bite-sized florets, discarding the tough core, and add them to a large mixing bowl. Melt the butter and whisk in the mustard, wine, and minced garlic until combined. Pour the sauce over the cauliflower and toss until every piece is coated.

Spread the cauliflower onto a sheet pan in a single layer, scraping any extra sauce out of the bowl and over the top. Season with salt and pepper. Roast for about 20 minutes, stirring once around the halfway mark, until the cauliflower is fork-tender with some bite left and browned at the edges. Don’t roast it past that point or the texture turns soft instead of toasty. Sprinkle the lemon juice over the hot cauliflower right before serving, spooning any remaining pan sauce over the top.

Is White Wine Keto?

No, white wine isn’t keto. It has a fair number of carbs in it, making it a poor choice as a beverage. However, for cooking, a small amount is well worth the extra few carbs. If you don’t want those few carbs, omit the wine to make this a strict keto recipe.

Variations

There’s so much you can do with this easy keto cauliflower recipe, with just a few add-ins you can add even more flavor! Here are some of my favorite ingredients to add:

  • Capers – Drained and chopped.
  • Parmesan cheese – Add it when the cauliflower is finished cooking for an even more yummy factor!
  • Pork Panko – A sprinkle of pork panko to the finished dish adds a bit of crunch!
  • Green onions – A few sliced green onions will add a pop of freshness and flavor.

Chef Jenn’s Tips

  • Fresh garlic can go green in the presence of an acid like lemon juice or white wine, so don’t be freaked out! It’ll still taste great.
  • Use fresh, not frozen, cauliflower for this recipe.
  • Don’t have Dijon? Use regular mustard.
  • If you use unsalted butter, you will have to add a touch more salt to the recipe.

Make It A Meal

I’ve served this keto Crack Cauliflower dish with all sorts of meats and sides. But, this is a flavor-heavy dish, so you don’t want to serve it with other big flavors. Bacon-wrapped pork tenderloin, sausage, Beef Kefta Kabobs, and even fish will go swimmingly with low-carb Crack Cauliflower. I wouldn’t serve it with anything else saucy, or the flavors could clash.

Storage

To store any roasted cauliflower leftovers, pop them into an airtight container and refrigerate for 3-4 days. Heat your leftovers in the oven or microwave.

You can also freeze this keto side dish recipe. However, it won’t come out quite as good as eating it fresh from the oven. To freeze it, wrap it tightly in a freezer-friendly plastic bag, squeezing out as much of the air as possible. Freeze it for up to three months.

Thaw it in the fridge overnight or in the microwave if you’re pressed for time. Heat it in a microwave-safe dish until warm, or roast it in a 425-F oven for just a few minutes until it is warmed through.

Frozen and thawed cauliflower will give off some extra liquid, so don’t be alarmed if this seems a bit watery when you thaw and reheat it.

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Crack Cauliflower

I’ve been gobbling Crack Cauliflower long before cauliflower became a Keto dieter’s best friend, and when you make it like this, with gobs of butter, garlic, wine, and lemon, it is soooo easy to indulge!
Course Side Dish
Cuisine French
Keyword keto crack cauliflower, keto side dish, low-carb cauliflower, mustard cauliflower, roasted keto cauliflower,
Prep Time 10 minutes
Cook Time 20 minutes
Total Time 30 minutes
Servings 6 servings
Calories 145kcal
Author Chef Jenn

Ingredients

  • whole head of cauliflower broken into pieces
  • 1/2 cup salted butter melted
  • 2 tablespoons Dijon or yellow mustard
  • 2 tablespoons white wine
  • 2 each cloves of garlic minced fine
  • 1 tablespoon lemon juice
  • salt and pepper

Instructions

  • Preheat the oven to 425-F.
  • Prepare the Crack Cauliflower by removing the leaves and cutting away most of the stem. Break the cauliflower into florets, then cut each floret into large bite-size pieces. Put the cauliflower into a large bowl for mixing.
  • Melt the butter in the microwave in a microwave safe container (watch it doesn’t foam over). Add the mustard, white wine, and garlic. Stir well to combine. 
  • Toss the cauliflower with the butter sauce. Then, spread the cauliflower out onto a sheet pan and sprinkle with salt and pepper. Make sure to scrape out all the yummy butter sauce from the bowl.
  • Bake at 425-F for about 20 minutes, or until the cauliflower is fork-tender but still crisp, and brown around some edges. Stir it once about halfway through the cooking time.
  • Sprinkle the lemon juice over the top before serving Crack Cauliflower, and top it with any remaining sauce from the pan. Yum!

Video

Notes

Recipe Card Tips

  • Use fresh cauliflower, not frozen. Frozen florets hold extra water that keeps the pieces from browning properly in the oven.
  • Pull the cauliflower once it’s fork-tender but still has a bit of bite. It moves from toasty to soft fast once it crosses that point.

Nutrition

Serving: 1cup | Calories: 145kcal | Carbohydrates: 1g | Protein: 0.4g | Fat: 16g | Saturated Fat: 10g | Polyunsaturated Fat: 1g | Monounsaturated Fat: 4g | Trans Fat: 1g | Cholesterol: 41mg | Sodium: 177mg | Potassium: 22mg | Fiber: 0.2g | Sugar: 0.2g | Vitamin A: 477IU | Vitamin C: 1mg | Calcium: 10mg | Iron: 0.1mg | Net Carbohydrates: 1g

A Note on Nutritional Information

Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed. Erythritol carbs (sugar substitutes) are not included in the carbohydrate counts as they have been shown not to impact blood sugar, and they have zero calories and zero carbs. Net carbs are the total carbs minus fiber.

WANT EVEN MORE EASY KETO DIET RECIPES?

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Jenn

Hi, I’m Jenn!

I’m a cookbook author (Keto Soup Cookbook and Keto Diabetic Cookbook and Meal Plan) as well as a retired chef, recipe developer, and writer of this blog (that’s a lot of hats!). I embarked on a journey to create foodie-worthy Keto-friendly meals that any home cook can be proud of! No matter if you’re low-carb, no-carb, dirty, or strict Keto, there are recipes in Keto Cooking Wins for you and your family. Read more...

13 thoughts on “Keto Crack Cauliflower (Buttery Low-Carb Roasted Side Dish)”

  1. I often make cauliflower, but I have never thought of adding Dijon mustard and white wine to the dish! What a great idea! I will try your recipe soon! Oh! I have got a question. Is it kids friendly? I am meaning adding white wine.

    Reply
    • Great question! The white wine is minimal, and optional, and will cook off in the high heat of the oven, so I wouldn’t worry about it. It tastes almost as good without out, so leave it out if you’re still concerned!

      Reply
  2. 5 stars
    Boy this stuff IS addictive! I love the Crack Cauliflower! I now see why it’s called that. It’s delicious! I ate almost a whole batch real fast, and I used a pretty generous sized head of cauliflower.

    I didn’t have any white wine so I substituted an equal of Apple Cider Vinegar. It worked extremely well.

    I love Dijon mustard too. I never thought of using it as an ingredient for any cauliflower dish. It definitely enhances the flavor of the dish.

    The heavy dose of butter really enhances the flavor too.

    This is a fabulous side dish that I think would go well with almost anything! It’s pretty easy to make too.

    Reply
    • Aha! Another fan of Crack Cauliflower – I’m so glad you loved it and great idea about the apple cider vinegar! ~Jenn

      Reply
  3. I was a skeptic too. Now I’m a believer. I just bought 2 heads of cauliflower and some white wine so that I double up on it this time. You are a great cook and chef!

    Reply
  4. 5 stars
    I’m not a big mustard fan, just how mustardy dose this taste? I gave it a 5 star rating cause your recipeds are always wonderful!!

    Reply
4.86 from 7 votes (5 ratings without comment)

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