Thai basil is a fragrant herb that plays a key role in Southeast Asian cuisine, especially Thai, Vietnamese, and Lao cooking. With its distinctive aroma and bold flavor, Thai basil adds depth and freshness to stir-fries, curries, soups, and noodle dishes. If you love aromatic, vibrant food, Thai basil is an herb you’ll want to know well.
This detailed guide explains what Thai basil is, how it differs from other basil varieties, its health benefits, and how to use it correctly in the kitchen.
What Is Thai Basil?
Thai basil (Ocimum basilicum var. thyrsiflora) is a basil variety known for its anise- and licorice-like aroma, peppery notes, and sturdy leaves. Unlike sweet basil, Thai basil holds up well to heat, making it ideal for cooked dishes.
It’s easily recognized by:
- Narrow, pointed green leaves
- Purple stems
- Small purple or pink flowers
- A strong, spicy fragrance
Thai Basil vs Regular Basil
Although they look similar, Thai basil and sweet (Italian) basil are very different in flavor and use.
Thai basil
- Spicy, peppery, slightly sweet
- Notes of anise and clove
- Heat-resistant
- Best for savory Asian dishes
Sweet basil
- Mild, sweet, slightly peppery
- Delicate aroma
- Loses flavor when cooked too long
- Best for Italian and Mediterranean dishes
Substituting one for the other changes the flavor profile significantly.
Popular Dishes with Thai Basil
Thai basil is a signature ingredient in many iconic dishes:
- Pad Krapao (Thai basil stir-fry)
- Green and red curries
- Pho and Vietnamese noodle soups
- Stir-fried chicken, beef, or tofu
- Thai fried rice
It’s often added at the end of cooking to preserve its aroma.
Health Benefits of Thai Basil
Thai basil is not just flavorful—it’s also nutritious:
- Rich in antioxidants
- Contains anti-inflammatory compounds
- Supports digestion
- May help reduce stress and fatigue
- Provides vitamins A, C, and K
In traditional Asian medicine, Thai basil is valued for its warming and balancing properties.
How to Buy and Store Thai Basil
Buying tips
- Choose bright green leaves with no wilting
- Avoid yellowing or black spots
- Fresh aroma is key
Storage tips
- Store stems in a glass of water like fresh herbs
- Cover loosely and refrigerate
- Alternatively, wrap in a damp paper towel and refrigerate
- Use within 3–5 days for best flavor
Cooking Tips for Thai Basil
- Add Thai basil at the end of cooking
- Tear leaves by hand instead of chopping
- Avoid overcooking to preserve aroma
- Pair with garlic, chili, fish sauce, soy sauce, coconut milk, and lime
Thai basil works especially well in spicy, savory dishes.
Can You Grow Thai Basil at Home?
Yes—Thai basil is easy to grow:
- Thrives in warm, sunny conditions
- Grows well in pots or gardens
- Regular harvesting encourages bushy growth
Freshly picked Thai basil has a much stronger aroma than store-bought.
Thai Basil in Modern Cooking
Beyond traditional Asian recipes, Thai basil can be used creatively:
- Infused oils
- Herbal cocktails and mocktails
- Asian-inspired pestos
- Garnish for seafood and grilled vegetables
Its bold flavor makes it a great herb for fusion cooking.