The term "Thai basil" can refer to three different types of basil common in Thai cooking -- Queen of Siam basil, Holy Basil or Horapa basil. Horapa is the most commonly used Thai basil in the United States. It has purple stems, small greenish purple leaves, and a licoricey taste that is different from Italian sweet basil.

Thai basil adds a subtle anise flavor and perfume when added to hot soups, stir-fries or curries just before serving. Or it can be eaten fresh in salads, wrapped in a lettuce leaf with mint, or fried in spring rolls.

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