Caramelized Onion Dip

Bahan-bahan (12 porsi)

• 2 tablespoons olive oil
• 3 cups finely diced sweet onion
• ¾ teaspoon kosher salt, (divided)
• 1½ cups sour cream
• ¾ cup mayonnaise
• ½ teaspoon garlic powder
• ¼ teaspoon white pepper
• 1 dash hot sauce (such as Tabasco), (or more to taste)
• ⅛ teaspoon red pepper flakes, (optional)
• sturdy potato chips, (for serving)