This timeless and delicious appetizer is perfect for the holidays. It can be made two days in advance which helps immensely when you have a mountain of cooking to do for your guests.
Depending on what type of pan you are using to caramelize your onions, it can take up to 45 minutes to get them to their delicious, sweet and golden brown color. So be patient. The further you are into the process the lower your temperature needs to be.
- 2 large or 3 medium sweet onions
- 3 tablespoons salted butter
- 2 tablespoons olive oil
- kosher salt to taste
- freshly ground pepper to taste
- ½ cup mascarpone cheese
- ½ cup sour cream
- ½ cup Hellman's mayonnaise
- Sprinkle of Cayenne pepper (optional)
- Bring the mascarpone and sour cream to room temperature.
- Remove the brittle part of the outer onion. Cut onion in half, thinly slice onions.
- Place the butter and olive oil in a large skillet on high heat, once butter has melted add the onions. Stir onions to coat them in oil and butter. Lightly salt and pepper.
- Stir onions occasionally for first 15 minutes, reduce heat to medium once you see browning of the onions. Lightly salt and pepper the onions.
- After about 30 minutes you will need to continually stir the onions and reduce heat to medium low. Your onions should be a nice caramel color. Remove from heat.
- With an electric mixer beat together the mascarpone cheese, sour cream and mayonnaise. Gently stir in the onions.
- Cover and chill until ready to serve.