INGREDIENTS
1/4 cup
extra virgin olive oil
3 lb
yellow onions, halved lengthwise and thinly sliced crosswise
1 tsp
coarse salt
2 tbsp
white wine vinegar
1/3 lb
bacon, chopped
1 1/2 cups
mayonnaise
1 cup
sour cream
1/4 cup
safflower oil
3
shallots, thinly sliced into rings