Fill a skillet half way with water, add your vinegar and bring to a boil over high heat on stove. Reduce to simmer and break your eggs one at a time into the water, cook for 4-5 minutes.

In a separate pan you can cook your bacon, add 1 tsp olive oil and cook bacon few minutes on each side.

For sauce, in a microwave safe bowl whisk together your yogurt, mayo, mustard and lemon juice. Microwave for 30 seconds, then stir in butter.

Cut your fold it's in half. Top with 1 slice of bacon, tomato, a dash of salt & pepper, egg and sauce.

Serve immediately, makes 4 servings.