Tomato, Avocado, And Red Onion Salad With Herb Vinaigrette Recipe

• 3 Tbsp. red wine vinegar
• 1/4 c. extra virgin olive oil plus
• 1 1/2 tsp extra virgin olive oil
• 1 Tbsp. chopped fresh chives
• 1 Tbsp. chopped fresh flat-leaf parsley
•     Salt to taste
•     Freshly-grnd black pepper to taste
• 2 med ripe tomatoes cut 1/4" thk slices
• 1 sm red onion thinly sliced
• 1 lrg avocado cut crosswise
•     into 1/3" thick slices

Directions