Simple Caramelized Onion Dip with Sour Cream

I’ll never forget the first time I realized that slowly caramelizing onions in butter could turn into the most addictive dip I’ve ever made. This caramelized onion dip combines sweet, jammy onions with tangy sour cream and cream cheese for a crowd-pleasing appetizer that disappears in minutes. Trust me, once you taste how those golden onions melt into the creamy base, you’ll be making this for every gathering.

Estimated Nutrition

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

• Calories: 1600-1800
• Protein: 18-22 g
• Fat: 140-155 g
• Carbohydrates: 70-80 g

Ingredients

For the caramelized onions:

• 3 onions (finely diced into 1/4-inch pieces)
• 3 tbsp butter (I like Kerrygold unsalted butter for this)
• 1 1/2 tsp salt
• 1 tbsp sugar
• 2 oz white wine

For the creamy base:

• 12 oz sour cream (I prefer Daisy brand for a clean flavor)
• 8 oz cream cheese (room temperature, about 70°F for easier mixing)
• 1 garlic clove (finely grated)
• 2 tbsp fresh parsley (finely chopped)
• 1 tsp worcestershire sauce (Lea & Perrins is recommended for depth of flavor)
• 1/4 tsp freshly ground black pepper

Step 1: Prepare and Caramelize the Onions

• 3 onions
• 3 tbsp butter
• 1 1/2 tsp salt
• 1 tbsp sugar
• 2 oz white wine

Finely dice the 3 onions into 1/4-inch pieces—uniformity here ensures even caramelization.

Melt the butter in a large skillet over medium heat, then add the diced onions, salt, and sugar.

Cook, stirring occasionally, for about 30 minutes until the onions turn deep golden brown and develop sweet, rich flavors.

Add the white wine in small amounts (a tablespoon or two at a time) throughout cooking, allowing it to evaporate between additions—this prevents the pan from becoming too wet and helps build complex flavor.

I like to let the onions sit undisturbed for a minute or two between stirs, which encourages deeper browning on the bottom of the pan.

Step 2: Cool and Combine the Creamy Base

• 12 oz sour cream
• 8 oz cream cheese
• caramelized onions from Step 1
• 2 tbsp fresh parsley

While the onions finish cooking, combine the room-temperature cream cheese and sour cream in a large bowl.

Stir until smooth and well-blended—the room temperature cream cheese should mix easily without lumps.

Once the caramelized onions have cooled to room temperature (this takes about 10-15 minutes), fold them into the cream cheese mixture along with the fresh parsley.

I recommend folding rather than stirring here to keep the dip airy and prevent overworking the mixture.

Step 3: Season to Taste and Finish

• 1 garlic clove
• 1 tsp worcestershire sauce
• 1/4 tsp freshly ground black pepper
• dip mixture from Step 2

Add the finely grated garlic, Worcestershire sauce, and freshly ground black pepper to the dip.

Stir gently to distribute the seasonings evenly throughout.

Taste and adjust seasoning as needed—you may want additional salt, pepper, or Worcestershire depending on your preference.

Transfer to a serving bowl and refrigerate until ready to serve, allowing the flavors to meld together for at least 30 minutes before serving.

Simple Caramelized Onion Dip with Sour Cream

Delicious Simple Caramelized Onion Dip with Sour Cream recipe with step-by-step instructions.

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Prep Time 15 minutes mins

Cook Time 35 minutes mins

Total Time 52 minutes mins

Servings: 3 cups of dip

Calories: 1700

Ingredients Method

Ingredients

  

For the caramelized onions

• 3 onions (finely diced into 1/4-inch pieces)
• 3 tbsp butter (I like Kerrygold unsalted butter for this)
• 1 1/2 tsp salt
• 1 tbsp sugar
• 2 oz white wine

For the creamy base

• 12 oz sour cream (I prefer Daisy brand for a clean flavor)
• 8 oz cream cheese (room temperature, about 70°F for easier mixing)
• 1 garlic clove (finely grated)
• 2 tbsp fresh parsley (finely chopped)
• 1 tsp worcestershire sauce (Lea & Perrins is recommended for depth of flavor)
• 1/4 tsp freshly ground black pepper

Method

 

1. Finely dice the 3 onions into 1/4-inch pieces—uniformity here ensures even caramelization. Melt the butter in a large skillet over medium heat, then add the diced onions, salt, and sugar. Cook, stirring occasionally, for about 30 minutes until the onions turn deep golden brown and develop sweet, rich flavors. Add the white wine in small amounts (a tablespoon or two at a time) throughout cooking, allowing it to evaporate between additions—this prevents the pan from becoming too wet and helps build complex flavor. I like to let the onions sit undisturbed for a minute or two between stirs, which encourages deeper browning on the bottom of the pan.
2. While the onions finish cooking, combine the room-temperature cream cheese and sour cream in a large bowl. Stir until smooth and well-blended—the room temperature cream cheese should mix easily without lumps. Once the caramelized onions have cooled to room temperature (this takes about 10-15 minutes), fold them into the cream cheese mixture along with the fresh parsley. I recommend folding rather than stirring here to keep the dip airy and prevent overworking the mixture.
3. Add the finely grated garlic, Worcestershire sauce, and freshly ground black pepper to the dip. Stir gently to distribute the seasonings evenly throughout. Taste and adjust seasoning as needed—you may want additional salt, pepper, or Worcestershire depending on your preference. Transfer to a serving bowl and refrigerate until ready to serve, allowing the flavors to meld together for at least 30 minutes before serving.