This caramelized onion dip is rich, savory, and irresistibly creamy.
Slow-cooked sweet onions melt into sour cream, mayo, and garlic powder for the ultimate homemade party dip.
It’s make-ahead friendly, totally scoopable, and guaranteed to disappear fast!
Why You’ll Love This Recipe
Sweet, deeply golden onions with rich caramel flavor.
Creamy, tangy base made with sour cream and mayo.
Perfect for parties or snacking any time.
Make-ahead friendly—flavor deepens as it rests.
Versatile—pairs with chips, veggies, pretzels, and more.
Ingredient Highlights
Unsalted butter – Creates a rich base to slowly caramelize the onions.
Sweet onions – Chopped and cooked down until jammy and golden brown.
Kosher salt & black pepper – Enhances the natural sweetness of the onions.
Sour cream or plain Greek yogurt – Adds tang and creaminess to the dip.
Mayonnaise – Brings richness and helps the dip emulsify.
Garlic powder – Adds a subtle savory undertone.
Fresh herbs (like parsley) – Optional garnish for color and freshness.
Pro Tips Before You Start
Use sweet onions like Vidalia or Walla Walla for best flavor.
Low and slow is key—caramelizing takes time but is worth it.
Add a splash of water if onions start to stick or burn.
Make ahead for deeper flavor; the dip improves after chilling.
Warm up caramelized onions slightly before mixing for easier blending.
How to Make Caramelized Onion Dip
Step 1: Caramelize the Onions
Melt butter in a skillet. Add chopped onions, salt, and pepper.
Cook over medium for 5 minutes, then reduce heat to low and stir often until deeply golden—about 30–60 minutes.
Step 2: Cool the Onions
Let the onions cool slightly before adding to the dip.
You can make them 1–2 days ahead and store in the fridge.
Step 3: Mix the Base
Whisk together sour cream, mayonnaise, garlic powder, and more salt and pepper.
Step 4: Combine and Taste
Fold in the caramelized onions. Stir until smooth and creamy.
Taste and adjust seasoning as needed.
Step 5: Chill or Serve
Serve immediately or chill for a few hours.
Garnish with fresh herbs and serve with chips, veggies, or crackers.
What to Serve It With
Kettle-cooked or ridged potato chips
Crunchy vegetable sticks (carrot, celery, bell pepper)
Toasted baguette slices or crostini
Pretzel rods or flatbreads
Spread on burgers or sandwiches as a condiment
Variations / Substitutions
Use Greek yogurt for a lighter dip with more tang.
Add a pinch of cayenne or smoked paprika for depth.
Swap in shallots or yellow onions if sweet onions aren’t available.
Use vegan mayo and plant-based yogurt to make it dairy-free.
Stir in chopped chives or caramelized leeks for variety.
Storage & Leftovers
Fridge – Store in an airtight container for up to 4–5 days.
Make-ahead friendly – Flavors develop after chilling for a few hours.
Texture note – Dip will thicken in the fridge, but softens at room temp.
Serving tip – Bring out 15 minutes before serving for easier scooping.
FAQs
Can I caramelize the onions in advance?
Yes—store in the fridge for 1–2 days and reheat gently before mixing.
What’s the difference between sour cream and Greek yogurt in this recipe?
Sour cream is richer, while Greek yogurt adds more tang and protein.
How long do the onions take to caramelize?
Anywhere from 30 to 60 minutes depending on your heat and pan—low and slow is best.
Is this dip freezer-friendly?
Not recommended—the dairy base will likely separate when thawed.
Can I use yellow or red onions instead?
Yes, though sweet onions give the best balance of flavor and caramelization.
Is this dip good for parties?
Absolutely! It can be made ahead and served cold or room temp.
Can I double the recipe?
Yes—just use a larger skillet for caramelizing the onions evenly.
Final Thoughts
This caramelized onion dip is a flavor-packed, make-ahead snack that always hits the spot.
Whether you’re entertaining or just craving something savory, it’s creamy, crowd-pleasing, and loaded with deep, golden onion flavor.
It’s one of those dips that disappears before you know it—trust me.
