This caramelized onion dip is mixed with melty cheese and baked to gooey perfection. Grab your favorite veggies and keto crackers, and dig in!
Top down image of Caramelized Onion Dip on a brown table, surrounded by vegetables.

This caramelized onion dip is mixed with melty cheese and baked to gooey perfection. Grab your favorite veggies and keto crackers, and dig in!

Top down image of Baked Caramelized Onion Dip in a white baking dish, surrounded by vegetables.


 

In case you hadn’t noticed, I have a thing for appetizers. Give me a table filled with tasty items like keto stuffed mushrooms and cucumber bites, and I am one happy woman. Bonus points if there are some keto chicken wings as well.

I also think there should be at least one warm, cheesy dip surrounded by a plate of fresh veggies for scooping it up. Like this glorious Baked Caramelized Onion Dip!

I love to serve it with keto crackers, if I have the time and energy to make them. But if not, mini peppers and celery suit me just fine. Really, it’s all about getting that melty cheese to my mouth without dripping any on my shirt!

Caramelized Onion Dip being scooped up with a red mini pepper.

Why this recipe is so awesome

Caramelized onion dip is often a refrigerated dip made with sour cream and mayonnaise. But it makes a wonderful hot dip as well. Baking it with some sharp cheddar or Gruyere cheese takes it to new heights!

Onions are also surprisingly high carb so you can’t go to town on them. But they are so flavorful that a single onion is sufficient in this creamy baked dip. I cut it in half and sliced it really thinly, to get good distribution throughout the recipe.

Take the time to caramelize the onions slowly over low heat, because it helps intensify the flavors. A little crisp bacon sprinkled overtop doesn’t hurt either!

I made this for a Super Bowl party a few years ago and my friends raved over it. It really is gooey, cheesy onion perfection.

Ingredients you need

Top down image of ingredients needed for Caramelized Onion Dip.
  • Bacon: Because everything tastes better with bacon! Cook it nice and crispy to add texture and flavor. You will also caramelize the onion in the leftover bacon grease.
  • Onion: Yellow onions caramelize really nicely. Slice it very thinly!
  • Brown sugar replacement: This is optional, but using a touch of Brown Swerve or another sweetener helps bring out extra sweetness in the onions. It also gives them a little more color.
  • Gruyere cheese: Gruyere and caramelized onions are amazing together but you can also use sharp cheddar.
  • Sour cream: This adds creaminess and a little tang to the dip.
  • Mayonnaise: This will add some additional creaminess to the dip.
  • Apple cider vinegar: A little acid helps balance out the sweetness of the caramelized onions.
  • Fresh parsley: I like to add a little chopped parsley or chives to garnish this dip. This is optional.
  • Pantry staples: Olive oil, dried thyme, cayenne pepper, salt and pepper.

Step-by-step directions

A collage of 6 images showing how to make Caramelized Onion Dip.

1. Cook the bacon: n a large skillet, cook the bacon until crisp. Transfer to a paper towel lined plate with a slotted spoon, leaving the drippings in the pan.

2. Caramelize the onions: Reduce the heat to low and add the olive oil and the onions. Sprinkle with sweetener, salt, and pepper and cook, stirring frequently, until onions are soft and caramelized. This can take up to 20 minutes.

3. Mix the dip: In a large bowl, combine the sour cream, shredded cheese, mayonnaise, vinegar, thyme, and cayenne. Use a slotted spoon to scoop the onions from the pan into the bowl (otherwise it can be too greasy).

4. Bake the dip: Spread the dip in a small (16 ounce) baking dish and sprinkle with the remaining cheese. Bake at 400ºF for 15 minutes. Sprinkle the top with the chopped bacon and parsley, and serve.

Top down image of Caramelized Onion Dip on a brown table, surrounded by vegetables.

Expert Tips

To make this dip in advance of a party, you can prep it through Step 3. Then wrap it up tightly and refrigerate for up to two days. Let it come to room temperature before baking.

You don’t need potato or corn chips to scoop up this cheesy dip. For low carb options, serve this dip with:

Close up shot of Caramelized Onion Dip with half a mini pepper and two slices of cucumber dipped into it.

Frequently Asked Questions

What is caramelized onion dip made of?

This Baked Caramelized Onion Dip recipe contains onion, sour cream, mayonnaise, shredded cheese, caramelized onions, and bacon. It differs from most onion dips as it’s meant to be served hot.

How do you store leftover onion dip?

Once cooled, store any leftover onion dip in an airtight container and refrigerate for up to 5 days. I don’t recommend freezing this dip.

How many carbs are in hot onion dip?

This keto friendly hot onion dip recipe has 3.2g of carbs per serving. It has minimal fiber.

More delicious dip recipes

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Top down image of Caramelized Onion Dip on a brown table, surrounded by vegetables.
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Caramelized Onion Dip Recipe

Servings: 10 servings
Prep Time 10 minutes
Cook Time 35 minutes
Total Time 45 minutes
This caramelized onion dip is mixed with melty cheese and baked to gooey perfection. Grab your favorite veggies and keto crackers, and dig in!

Ingredients
 

  • 2 slices bacon, chopped
  • 1 tbsp (14.2 g) olive oil
  • 1 medium onion, halved and thinly sliced
  • 1 tbsp (15.22 g) Swerve Brown, or other brown sugar replacement
  • 1 tsp salt
  • 1/2 tsp black pepper
  • 1 cup (230 g) sour cream
  • 3/4 cup (99 g) shredded gruyere cheese
  • 1/3 cup (74.67 g) mayonnaise
  • 1 tbsp (15.22 g) apple cider vinegar
  • 3/4 tsp dried thyme
  • 1/8 tsp cayenne pepper
  • 1 tbsp chopped parsley, optional for garnish

Instructions

  • In a large skillet, cook the bacon until crisp. Transfer to a paper towel lined plate with a slotted spoon, leaving the drippings in the pan.
  • Reduce the heat to low and add the olive oil and the onions. Sprinkle with sweetener, salt, and pepper and cook, stirring frequently, until onions are soft and caramelized. This can take up to 20 minutes.
  • Preheat the oven to 400ºF. In a large bowl, combine the sour cream, shredded cheese, mayonnaise, vinegar, thyme, and cayenne. Use a slotted spoon to scoop the onions from the pan into the bowl, otherwise it’s a little too greasy!
  • Spread the dip in a small (16 ounce) baking dish and sprinkle with the remaining cheese. Bake 15 minutes. Sprinkle the top with the chopped bacon and parsley, and serve.

Notes

Storage Information: Once cooled, store any leftover onion dip in an airtight container and refrigerate for up to 5 days. I don’t recommend freezing this dip.

Nutrition

Serving: 3tablespoons (approximately) | Calories: 158kcal | Carbohydrates: 2.5g | Protein: 3.5g | Fat: 14g | Fiber: 0.3g
I’d love to know your thoughts, leave your rating below!

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8 Comments

  1. Just a question .. step 3 says to mix sour cream, shredded cheese, mayo, etc .. scoop it all into a bowl after it’s mixed .. then step 4 days to spread in a baking dish and sprinkle with remaining cheese. Is there cheese left over? Am I not supposed to use it all in step 3?

  2. CAROL MAY says:

    I’d love to try this but the recipe isn’t showing up in the post. How do I view the recipe?

    1. You click the big link at the bottom that says “Please see my…”

  3. Wow, a great combination to try.. Looks tempting! 😀

  4. This is definitely something one of those veggie trays is begging for 🙂

  5. Is the carb count for the entire batch?

    1. It has to be per serving with the recipe making 8 servings. A medium onion has 10 carbs minus about 2 for fiber.

  6. I could just about live on dip alone. I declare today “Dip for Dinner Day”! This one’s a keeper, for sure.

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