Open-Face Caprese Sandwiches

2 tbsp olive oil, divided
1 tsp minced garlic
8 slices crusty Italian bread
3 ripe medium tomatoes, sliced
1 lb fresh mozzarella cheese, sliced thinly
16 medium basil leaves
2 tbsp balsamic vinegar
Sea salt and freshly ground black pepper

1. Prepare a grill for medium heat. Combine 1 tbsp oil and the garlic and brush onto 1 side of each bread slice.
2. Lay bread oiled side down on grill and cook until slightly toasted, about 2 minutes. Turn bread over, lay tomato slices on bread to fit, overlapping if needed, then lay cheese slices over tomatoes. Cover grill and cook until cheese starts to melt, about 4 minutes.
3. Transfer sandwiches to a platter. Put 2 basil leaves over each sandwich and drizzle with remaining tbsp oil and the vinegar. Sprinkle with salt and pepper.