Ingredients
Instructions
- Heat grill.
- Slice onion into slightly larger than 1/4-inch slices and brush both sides of each slice with olive oil.
- Place onion on grill and cook 4-5 minutes per side or until brown and tender.
- Let onion cool and then chop.
- Place potatoes into boiling salted water for about 20-25 minutes or until just tender; drain.
- When cool enough to handle, peeled and cut into 3/4 inch pieces.
- In a large bowl, stir milk and vinegar together and let sit 1-2 minutes to thicken.
- Whisk in mayo, salt and pepper.
- Stir in onions.
- Add potatoes to bowl, stir and then add celery.
- Stir gently.
- Cover and refrigerate for several hours before serving.