In small saucepan, bring water to a boil. Add tomatoes; simmer 3 minutes. Remove from heat; let stand 3 minutes to soften. Drain; let cool.Advertisement
In bowl, mix sour cream, basil, mayonnaise, seasoning mix, milk, dried onion and garlic powder. Chop tomatoes into small pieces. Stir into mixture in bowl. Cover with plastic wrap. Refrigerate for at least 1 hour.
To serve, stir dip. Accompany with veggies, chips and crackers.