01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Toss halved tomatoes with 2 tablespoons olive oil, ½ teaspoon sea salt, and ¼ teaspoon black pepper. Spread cut side up on the prepared baking sheet.
03 - Roast tomatoes for 20 to 25 minutes until soft and beginning to caramelize. Remove and let cool slightly.
04 - Brush both sides of bread slices with 2 tablespoons olive oil. Arrange on a separate baking sheet and toast in the oven for 6 to 8 minutes, turning once, until golden and crisp.
05 - While warm, gently rub one side of each toast slice with peeled garlic cloves.
06 - In a bowl, gently mix roasted tomatoes with chopped basil and optional balsamic vinegar. Adjust seasoning with salt and pepper to taste.
07 - Spoon tomato mixture onto garlicky toasts. Garnish with additional basil, a drizzle of olive oil, and a sprinkle of salt and pepper as desired. Serve immediately.