Ingredients
Method
- Melt the butter in a wide skillet over medium-low heat and add the onions, salt and sugar.
- Cook for 30 to 35 minutes, stirring every few minutes, until the onions are deep golden and jammy rather than pale and wet.
- Spread the onions on a plate and cool them completely.
- Stir the sour cream, mayonnaise, Worcestershire, garlic powder and pepper together in a bowl.
- Fold in the cooled onions and refrigerate for at least 2 hours before serving.