Copycat Trader Joe's Caramelized Onion Dip

Ingredients

• 1 tablespoon grapeseed oil
• 4 cups chopped sweet onions
• 1/4 teaspoon kosher salt plus 1/8 teaspoon, divided
• 5 tablespoons water, or as needed
• 3/4 cup whole-milk plain strained (Greek-style) yogurt
• 1/2 cup reduced-fat sour cream
• 3 ounces reduced-fat cream cheese, at room temperature
• 2 teaspoons reduced-sodium Worcestershire sauce
• 1 teaspoon garlic powder
• 1 teaspoon granulated onion
• 1/2 teaspoon balsamic vinegar
• Pretzel chips, Belgian endive leaves, radish slices, multicolored baby carrots and/or cucumber slices for dipping (optional)

Instructions

1. Heat oil in a large skillet over medium-high heat. Add onions and cook, stirring occasionally, until starting to soften, about 4 minutes. Add 1/8 teaspoon salt and reduce heat to medium-low. Continue to cook, stirring occasionally, until the onions are deeply golden brown, jammy and reduced to about 2/3 cup, 35 to 40 minutes, adding water, 1 tablespoon at a time, and scraping the bottom of the pan if the onions begin to stick or burn. Remove from heat and set aside to cool completely, about 20 minutes.
2. Meanwhile, whisk yogurt, sour cream and cream cheese together in a medium bowl until very smooth. Whisk in Worcestershire, garlic powder, granulated onion, vinegar and the remaining 1/4 teaspoon salt.
3. Stir the cooled onions into the yogurt mixture until incorporated. Refrigerate until cold, about 1 hour. To serve, transfer the dip to a serving bowl and serve with desired dippers.