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    Home » Recipes » Appetizer Recipes

    Slow Roasted Onion Bacon Dip

    Published: Feb 9, 2022 · Modified: Jul 10, 2025 by Karin and Ken · This post may contain affiliate links. Leave a Comment

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    Slow roasted onion dip with bacon combines the sweetness of roasted onions with the salty goodness of bacon! This roasted onion dip recipe is loaded with rich flavors that everyone will love.

    Slow roasted onion dip in bowl with bowl of chips in background

    If you've never roasted onions, you're missing out. They have such a rich, deep flavor. If you've never made them into a dip, then read on because this one is DEE-lish.

    Roasted Onion Dip Recipe

    This was inspired by my other onion dip recipe and our Goat Cheese Dip with Bacon on this site and pairs well with these smoked pretzels, as well as chips, crackers, pita chips, and more.

    Ingredients

    It only takes a few simple ingredients to make this delicious dip. You'll probably have most of them in your kitchen already. Anything you don't have can be easily found at your local grocery store.

    For the Roasted Onions

    • Medium yellow onions - halved crosswise with "x" cuts int he root and stem ends
    • Olive oil
    • Nonstick spray

    For the Dip

    • Crispy bacon - drained and crumbled
    • Sour cream
    • Worcestershire sauce
    • Dijon mustard
    • Celery seed
    • Choped fresh chives
    • Salt

    See the recipe card at the end of the post for quantities.

    Instructions

    It only takes a few easy steps to make this flavorful dip.

    Step 1: Prep

    Set your oven rack to the lowest position and preheat the oven to 400 degrees. Then, line a rimmed baking sheet with foil and coat it with nonstick spray.

    Slice the onions in half crosswise - not lengthwise. Use a small, sharp knife to slice an "x" into each onion near the root and stem ends, allowing the steam to escape from the onion while it cooks.

    Step 2: Roast the Onions

    Coat the bottom of your onions with olive oil using a brush. Place them on top of the baking sheet, cut side down. Then, roast them until they're dark brown around the bottom edges and tender when pierced with a knife tip.

    Step 3: Prepare the Bacon

    While the onions are roasting, cook the bacon in a skillet over medium heat until crisp. Transfer the bacon to a plate lined with paper towels to cool. Then, crumble.

    Step 4: Cool the Onions

    Transfer the pan to a cooling rack and let the onions rest for about 5 minutes before lifting them off the pan with a spatula.

    Allow the onions to cool completely.

    Step 5: Chop the Onions

    When the onions have cooled, peel them and use a sharp knife to finely chop them.

    Step 6: Make the Dip

    Combine all the dip ingredients together in a medium bowl and mix until thoroughly combined.

    Step 7: Chill

    Transfer the dip to an air-tight container and chill for at least an hour before serving.

    Hint: You can use a food processor to quickly chop your roasted onions. Just be sure that you don't overdo it.

    Substitutions

    Don't have the correct ingredients on hand or want to change something up? Here are some helpful tips for you to change this roasted onion dip recipe.

    • Real Bacon Bits - If you don't have bacon or don't want to cook it, you can use packaged real bacon bits.
    • Greek Yogurt - Greek yogurt is an excellent substitute for sour cream.
    • Green Onions - If you don't have chives, you can finely chop green onions.

    Variations

    Want to personalize this slow roasted onion dip recipe? Here are some of my tried and true tips for changing up this recipe.

    • Spicy - Add a dash of cayenne or red pepper flakes for a kick of heat.
    • Minced Garlic - For even more flavor add minced garlic.

    If you love recipes like this, you may also enjoy this creamy herb dip.

    Equipment

    It only takes a few simple kitchen implements to make this recipe.

    • Measuring cups and spoons
    • Knife
    • Cutting board
    • Baking sheets
    • Bowl
    • Spoon

    Storage

    This dip will last for 3 to 4 days in the refrigerator.

    Tips

    I have a few tips here that will help you make the best dip possible.

    • Cook the bacon over medium heat. You want to get it crispy but not burned.
    • When cutting the "x" into the stem and root ends of your onions, you only need to go deep enough to pierce the first layer or two of the onion. You don't have to go super deep.
    • If you use a food processor to chop your roasted onions, be careful not to overdo it. You want finely chopped onions, not onion puree.
    Bowlful of roasted onion dip recipe with bowl of chips in background

    More Bacon Recipes

    Do you like bacon? Here are some recipes you may also like to try.

    • Blue Cheese Ball with Bacon
    • Bacon Avocado Toast
    • Crispy Air Fryer Bacon Twists

    FAQ

    Do you have questions about this roasted onion dip recipe? Here are some of the most commonly asked questions about slow roasted onion dip.

    Which onions are best for roasting?

    Yellow onions are the kind of cooking onions. Their strong flavor mellows as they cook and they can stand up to the heat of cooking.

    How long is this dip good?

    It will last for about 3 to 4 days in the refrigerator.

    What's the best bacon for dips?

    Any bacon will work great in this dip. Choose your favorite.

    Why did my dip go bad so fast?

    If you dip food directly into the storage container, you'll introduce bacteria into the dip which can make it go bad faster. This is especially true if you're a double-dipper.

    Slow Roasted Onion Dip

    Ready to get cooking? Remember that you can print this recipe if you would like.

    A bowl of creamy dip topped chives.

    Slow Roasted Onion Dip with Bacon

    Karin and Ken
    Slow roasted onion dip with bacon is rich, flavorful, and so versatile. This roasted onion dip recipe is flavorful and easy to make.
    Print Recipe Pin Recipe
    Prep Time 15 minutes mins
    Cook Time 45 minutes mins
    Cooling Time, divided 1 hour hr 15 minutes mins
    Total Time 2 hours hrs 15 minutes mins
    Course Appetizer
    Cuisine American
    Servings 20
    Calories 106 kcal

    Equipment

    • mason jar or resealable container with a lid
    • rimmed baking sheet
    • Aluminum foil
    • Sharp knife
    • basting brush
    • wire rack
    • cutting board
    • medium bowl
    • spoon or whisk

    Ingredients
      

    Roasting Onions

    • 6 medium yellow onions halved crosswise root and stem ends X’d twice
    • olive oil

    Dip

    • 10 slices bacon cooked crisp and drained, crumbled
    • 2 cups sour cream
    • 1 tablespoon Worcestershire sauce
    • 1 tablespoon Dijon mustard
    • 1 teaspoon celery seed
    • ¼ cup chopped fresh chives
    • ½ teaspoon salt
    • cooking spray
    Get Recipe Ingredients

    Instructions
     

    • Get out and measure your ingredients.
      Overhead photo of all the ingredients needed to make Roasted Onion Dip.
    • Preheat your oven to 400 degrees.
    • Line a rimmed baking sheet with aluminum foil and coat foil with cooking spray or oil.
    • Slice your onions in half crosswise so that the stem or root is at the top or middle of each onion half.
    • Using a small, sharp knife slice an x into each onion near the root or stem. This will allow steam to escape from the onion as it bakes inside your oven.
    • Using a brush, coat bottom of onions with olive oil and place on top of baking sheet, cut and olive oil side down.
      Onion halves placed flat side down on a baking sheet with aluminum foil.
    • Roast until dark brown around bottom edge and tender when pierced with thin knife tip, around 30 minutes.
      Roasted onion halves on a sheet of aluminum in a baking sheet.
    • Transfer pan to a rack.
    • Allow onions to rest for 5 minutes before lifting off pan with a spatula.
    • Allow onions to cool.
    • Peel and chop them all up fine.
    • Prepare your bacon in the meantime and get everything else ready.
    • Mix all ingredients together, including your onions and cooked bacon, in medium bowl. Reserve some cooked bacon to garnish dip, if desired.
      Roasted onions in a bowl with other ingredients.
    • Chill for at least an hour so flavors can meld together. You’ll be glad you did.
      Roasted onion bacon dip mixed and ready to serve.
    • Serve with a little reserved bacon on top, if desired.
      Roasted onion bacon drip served with potato chips.
    • Enjoy every bite!

    Notes

    • Cook the bacon over medium heat. You want to get it crispy but not burned.
    • When cutting the "x" into the stem and root ends of your onions, you only need to go deep enough to pierce the first layer or two of the onion. You don't have to go super deep.
    • If you use a food processor to chop your roasted onions, be careful not to overdo it. You want finely chopped onions, not onion puree.

    Nutrition

    Calories: 106kcalCarbohydrates: 5gProtein: 2gFat: 9gSaturated Fat: 4gPolyunsaturated Fat: 1gMonounsaturated Fat: 3gTrans Fat: 0.01gCholesterol: 21mgSodium: 159mgPotassium: 110mgFiber: 1gSugar: 2gVitamin A: 171IUVitamin C: 3mgCalcium: 35mgIron: 0.2mg
    Keyword roasted onion dip
    Tried this recipe?Let us know how it was!
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    We are the kitchen divas: Karin and my partner in life, Ken.

    We have been attached at the heart and hip since the first day we met, and we love to create new dishes to keep things interesting. Variety is definitely the spice of life!

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