Choose the best tomatoes you can find. Look for tomatoes that feel heavy for their size and smell sweet at the stem. Wash, dry, and slice into 1/4-inch rounds or thick wedges.
Prep the mozzarella. Drain any liquid and pat dry. Slice into rounds similar in size to the tomato slices, or halve bocconcini/ciliegine.
Layer the salad. On a platter, alternate tomato and mozzarella slices in a shingled pattern.
Tuck basil leaves between layers, leaving some visible for color.
Season well. Sprinkle evenly with sea salt and black pepper. Seasoning the tomatoes directly brings out their natural sweetness.
Add olive oil and vinegar. Drizzle generously with extra-virgin olive oil. Add a light splash of red wine vinegar or a few drops of balsamic.
Start small—you can always add more.
Optional extras. If using, add a pinch of dried oregano, a few ultra-thin red onion slices, or a few capers. A drizzle of balsamic reduction can add a gentle sweetness.
Let it rest briefly. Give the salad 5–10 minutes at room temperature. This helps the flavors mingle and the tomatoes release some juice.
Taste and adjust. Add another sprinkle of salt, a crack of pepper, or a little more oil or vinegar if needed.
Serve. Serve with crusty bread to soak up the juices, or enjoy as-is for a lighter bite.