Marinated Tomato Crostini Appetizer

Add the cherry tomatoes, scallions, minced garlic, chopped basil, extra virgin olive oil, champagne vinegar, salt & pepper, and red pepper flakes to a bowl and mix well. Set the bowl aside for 15-20 minutes to let the tomatoes marinate. Then, spread the crème fraîche onto the toasted crostini before topping with the marinated tomatoes.