Tarragon Shallot Egg Salad Sandwich - cooking recipe

Ingredients

8 large eggs
1/2 cup sour cream
3 tablespoons finely chopped shallots (or can substitute white, yellow or red onion)
1 1/2 tablespoons finely chopped fresh tarragon (to taste) or 1 teaspoon dried tarragon (to taste)
2 teaspoons white wine vinegar or 2 teaspoons tarragon vinegar
1/4 teaspoon salt (to taste)
1/4 teaspoon black pepper (to taste)
8 4 kaiser rolls or 4 croissants
baby spinach leaves (optional) or romaine lettuce (optional)
sliced tomatoes (optional)

Preparation

Cover eggs with cold water by 1 inch in a 2-quart heavy saucepan and bring to a rolling boil, partially covered. Reduce heat to low and cook eggs, covered completely, 30 seconds. Remove pan from heat and let eggs stand in hot water, covered, 15 minutes. Transfer eggs with a slotted spoon to a bowl of ice and cold water and let stand 5 minutes (to cool). Peel eggs and finely chop.
Stir together eggs and remaining salad ingredients in a bowl with a fork.
Spoon egg salad onto bread and spread evenly. Top with favorite garnishes.