Rich Dairy Free Caramelized Onion Dip

Finding a crowd-pleasing dip that’s dairy-free can feel like an impossible task, especially when you’re dealing with picky eaters or dietary restrictions at your next gathering. Traditional onion dip is loaded with sour cream and cream cheese, which means anyone avoiding dairy is left snacking on plain veggies while everyone else digs in.

That’s where this dairy-free caramelized onion dip comes to the rescue. It’s creamy, packed with sweet caramelized onions, and has that tangy flavor you crave from the classic version—but without a single drop of dairy. Plus, it’s surprisingly easy to make and works perfectly for game day, parties, or just a casual night of snacking on the couch.

What Kind of Cashews Should I Use?

Raw cashews are the way to go for this dip, and you can find them in the bulk section of most grocery stores or in the baking aisle. Roasted or salted cashews won’t work as well here since they’ll throw off the flavor balance of your dip. If your cashews seem a bit old or extra firm, don’t worry – just let them soak a little longer in the hot water until they’re soft enough to blend smoothly. The beauty of using cashews is that they create an incredibly creamy base that mimics traditional dairy-based dips, so you won’t miss the sour cream one bit.

Options for Substitutions

This dip is pretty forgiving when it comes to swaps, so here are some options if you need them:

• Raw cashews: Cashews are really the best choice here since they blend into a creamy base without much fuss. If you have a nut allergy, try soaked sunflower seeds instead – just soak them for at least 4 hours and expect a slightly different flavor.
• Dairy-free butter: Regular olive oil or coconut oil work fine for caramelizing the onions. You’ll get a slightly different taste, but the onions will still turn out sweet and golden.
• Coconut sugar: Regular white or brown sugar can replace coconut sugar without any changes to the recipe. You could also use maple syrup, but start with just 1 teaspoon since it’s sweeter.
• Almond milk: Any unsweetened plant-based milk works here – oat, soy, or cashew milk are all good choices. Just keep it unsweetened so you don’t throw off the savory flavor.
• Dairy-free sour cream: If you can’t find dairy-free sour cream, blend an extra 1/2 cup of soaked cashews with 2 tablespoons lemon juice and a pinch of salt until smooth and tangy.
• Yellow onions: Sweet onions like Vidalia work great and will give you an even sweeter result. White onions are fine too, though they’ll be a bit sharper in flavor.

Watch Out for These Mistakes While Cooking

The biggest mistake when caramelizing onions is cranking up the heat to speed things up, which will burn them instead of developing that sweet, rich flavor – keep the heat on medium-low and be patient during those 30-40 minutes.

Skipping the cashew soaking step or not soaking them long enough will leave you with a grainy dip instead of a smooth, creamy base, so make sure they’re covered in hot water for the full 30 minutes.

Another common error is adding the onions while they’re still hot, which can make your dip watery and separate the ingredients, so let them cool completely before stirring them in.

If your cashew mixture seems too thick after blending, add the almond milk gradually until you reach a smooth consistency that’s easy to mix with the other ingredients.

What to Serve With Dairy Free Caramelized Onion Dip?

This dip is perfect for game day or any casual get-together, and it pairs beautifully with thick-cut potato chips or kettle-cooked chips that can handle the creamy texture. I love serving it with a big platter of fresh veggies like carrots, celery, bell peppers, and cucumber slices for a lighter option that still satisfies. Crackers work great too – try water crackers, rice crackers, or even toasted baguette slices if you want something a bit more filling. You can also use it as a spread on sandwiches or wraps, or dollop it on top of baked potatoes for an easy weeknight dinner.

Storage Instructions

Store: This dip actually gets better after sitting in the fridge for a few hours, so it’s perfect to make ahead! Keep it in an airtight container in the refrigerator for up to 5 days. The flavors really meld together nicely overnight, so don’t be surprised if it tastes even better the next day.

Make Ahead: I love making this dip a day or two before a party or gathering. Just prepare it completely, transfer to your serving bowl, cover tightly with plastic wrap, and refrigerate. Give it a good stir before serving and you’re all set!

Serve: Let the dip sit at room temperature for about 15-20 minutes before serving to take the chill off. If it seems a bit thick after being in the fridge, just stir in a splash of almond milk to loosen it up to your desired consistency.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 1050-1200
• Protein: 23-28 g
• Fat: 80-95 g
• Carbohydrates: 80-95 g

Ingredients

For the onions:

• 3 large onions (thinly sliced into 1/4-inch half moons)
• 3 tbsp margarine (I use Earth Balance for a buttery flavor)
• 2 tsp sugar
• 1 1/4 tsp sea salt

For the dip base:

• 1 1/4 cups cashews (soaked in water for at least 4 hours)
• 2 cups hot water (for soaking)
• 1/3 cup almond milk (unsweetened)
• 1 cup dairy-free sour cream (I prefer Forager Project for its tanginess)
• 3 tbsp lemon juice (freshly squeezed for best acidity)
• 1 1/2 tsp Worcestershire sauce (ensure vegan/dairy-free)
• 1/2 tsp garlic powder
• 1/4 tsp smoked paprika
• 2 tbsp fresh chives (finely chopped)

Step 1: Prepare the Cashew Cream Base

• 1 1/4 cups cashews
• 1/3 cup almond milk

While the onions will be cooking, start by draining the soaked cashews (which should have already soaked for at least 4 hours) and discarding the soaking water.

Add the drained cashews to a blender with the almond milk and blend on high speed for 2-3 minutes until completely smooth and creamy, scraping down the sides as needed.

This cashew cream will form the rich, dairy-free base of your dip.

Set aside in a large mixing bowl.

Step 2: Caramelize the Onions Low and Slow

• 3 large onions
• 3 tbsp margarine
• 2 tsp sugar
• 1 1/4 tsp sea salt

Melt the margarine in a large skillet over medium-high heat.

Add the thinly sliced onions, sugar, and salt, stirring to coat everything evenly.

Cook for about 5-7 minutes until the onions begin to soften and release their moisture.

I like to add the sugar early because it helps draw out the onions’ natural juices and speeds up the caramelization process.

Once softened, reduce the heat to medium-low and continue cooking, stirring occasionally, for 30-40 minutes until the onions turn deep golden brown and develop a sweet, jammy texture.

The long, slow cooking is what transforms these onions into concentrated flavor bombs—don’t rush this step.

Once done, transfer to a plate and let cool to room temperature.

Step 3: Build the Dip Seasoning and Texture

• cashew cream mixture from Step 1
• 1 cup dairy-free sour cream
• 3 tbsp lemon juice
• 1 1/2 tsp Worcestershire sauce
• 1/2 tsp garlic powder
• 1/4 tsp smoked paprika

To the cashew cream base from Step 1, add the dairy-free sour cream, lemon juice, Worcestershire sauce, garlic powder, and smoked paprika.

Stir everything together until well combined and smooth.

The acidity from the lemon juice and the umami from the Worcestershire sauce will brighten the rich cashew base, while the smoked paprika adds a subtle depth that makes this dip taste less ‘healthy’ and more indulgent.

Step 4: Fold in Caramelized Onions and Finish

• caramelized onions from Step 2
• dip base from Step 3
• 2 tbsp fresh chives

Once the caramelized onions from Step 2 have cooled, fold them into the dip mixture from Step 3, stirring gently until evenly distributed throughout.

Top with the fresh chopped chives just before serving.

I find that adding the chives right before serving keeps them bright and flavorful rather than wilting into the dip.

Taste and adjust seasoning as needed—you may want a bit more salt or lemon juice depending on your preferences.

Rich Dairy Free Caramelized Onion Dip

Delicious Rich Dairy Free Caramelized Onion Dip recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 25 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 4.5 cups of dip

Calories: 1125

Ingredients Method

Ingredients

  

For the onions

• 3 large onions (thinly sliced into 1/4-inch half moons)
• 3 tbsp margarine (I use Earth Balance for a buttery flavor)
• 2 tsp sugar
• 1 1/4 tsp sea salt

For the dip base

• 1 1/4 cups cashews (soaked in water for at least 4 hours)
• 2 cups hot water (for soaking)
• 1/3 cup almond milk (unsweetened)
• 1 cup dairy-free sour cream (I prefer Forager Project for its tanginess)
• 3 tbsp lemon juice (freshly squeezed for best acidity)
• 1 1/2 tsp Worcestershire sauce (ensure vegan/dairy-free)
• 1/2 tsp garlic powder
• 1/4 tsp smoked paprika
• 2 tbsp fresh chives (finely chopped)

Method

 

1. While the onions will be cooking, start by draining the soaked cashews (which should have already soaked for at least 4 hours) and discarding the soaking water. Add the drained cashews to a blender with the almond milk and blend on high speed for 2-3 minutes until completely smooth and creamy, scraping down the sides as needed. This cashew cream will form the rich, dairy-free base of your dip. Set aside in a large mixing bowl.
2. Melt the margarine in a large skillet over medium-high heat. Add the thinly sliced onions, sugar, and salt, stirring to coat everything evenly. Cook for about 5-7 minutes until the onions begin to soften and release their moisture. I like to add the sugar early because it helps draw out the onions' natural juices and speeds up the caramelization process. Once softened, reduce the heat to medium-low and continue cooking, stirring occasionally, for 30-40 minutes until the onions turn deep golden brown and develop a sweet, jammy texture. The long, slow cooking is what transforms these onions into concentrated flavor bombs—don't rush this step. Once done, transfer to a plate and let cool to room temperature.
3. To the cashew cream base from Step 1, add the dairy-free sour cream, lemon juice, Worcestershire sauce, garlic powder, and smoked paprika. Stir everything together until well combined and smooth. The acidity from the lemon juice and the umami from the Worcestershire sauce will brighten the rich cashew base, while the smoked paprika adds a subtle depth that makes this dip taste less 'healthy' and more indulgent.
4. Once the caramelized onions from Step 2 have cooled, fold them into the dip mixture from Step 3, stirring gently until evenly distributed throughout. Top with the fresh chopped chives just before serving. I find that adding the chives right before serving keeps them bright and flavorful rather than wilting into the dip. Taste and adjust seasoning as needed—you may want a bit more salt or lemon juice depending on your preferences.