Sweet Onion Salad

1 small vidalia onion very thinly sliced
1 small red onion very thinly sliced
3 Tbs sherry vinegar
1 Tbs honey
1 tsp fresh lemon juice
1 tsp Dijon mustard
1/4 tsp coarse salt
1/8 tsp freshly ground pepper
2 Tbs + 1 12/ tsp extra virgin olive oil
1 med radicchio, cored and leaves cut into 1/2" pieces
2 large leaves red leaf lettuce torn into pieces
1 c red or yellow grape tomatoes
Cilantro

Put onions in a large bowl of cold water. Swish onions with hands until water becomes cloudy. Transfer to a bowl of clean water and let soak 15 min. Repeat twice. Drain and pat dry. Transfer to a large bowl.

Whisk together vinegar, honey, lemon juice, mustard, salt, and pepper in a bowl. Add oil in a slow stream whisking until emulsified.

Add radicchio, lettuce, tomatoes, and cilantro to onion bowl. Drizzle with dressing to taste and toss.
Serve with remaining dressing on the side.