How to Make It
Preheat oven to 450º. In a large mixing bowl, combine okra, tomatoes, garlic, onion, 1 tablespoon olive oil, balsamic vinegar, and basil. Toss gently, then salt and pepper to taste (salt will depend on saltiness of okra). Cover and refrigerate for at least 30 minutes.
Slice the baguette on a diagonal into about 1/2 inch thick slices and arrange on a baking sheet. Brush each piece with olive oil, and toast, uncovered, on the top rack until the bread begins to brown, about 5 minutes. Repeat with remaining bread if necessary. Serve chilled okra mixture on freshly toasted crostini.