Caramelized Onion Dip
Once you try this caramelized onion dip made with tender and sweet onions — you will never use onion soup mix again to make onion dip.
vegetable oil, or as needed
1
tablespoon
onion, thinly sliced
1
large
butter
2
tablespoons
white sugar, or as needed
2
tablespoons
sour cream
1
cup
plain yogurt
1
cup
mayonnaise
½
cup
salt and ground black pepper to taste
 Heat oil in a skillet over low heat; stir in onion. Cook and stir until onion is soft but not browned, 20 to 30 minutes. Increase heat to high, add butter, and sprinkle sugar over onions. Cook and stir frequently until onion is very tender and dark brown, 8 to 10 minutes more. Remove from heat and cool to room temperature.
  Combine sour cream, yogurt, and mayonnaise together in a bowl; season with salt and black pepper. Mince cooled onions on a cutting board; stir onions into sour cream mixture. Store in refrigerator to allow flavors to blend, at least 1 hour.
