In a blender, combine basil leaves, olive oil, garlic and salt. Blend until very smooth. Store in a squeezy bottle, for easy serving. Refrigerate leftover basil emulsion with a slick of olive oil covering the top so it doesn't oxidize. Can be used on sandwiches, pasta, fish, chicken, etc.
Slice tomato. Drizzle basil emulsion over. Sprinkle of salt and pepper if desired.
Slice country loaf and serve with tomato to soak up juices.