Holy basil is also known as tulsi in India. I have heard a story that Thai people moving to India are warned not to pluck the leaves from the plant without seeking permission as they are holy plants.
Holy basil is gapow in Thai. There are several varieties in Thailand. Some are grown wildly. If you trek in Thailand, check out for the reddish, purplish variety. It can be grown from seeds in the US in the summer.
You are probably familiar with 'gai pad gapow'. Frequently here in the US, when you order 'pad gapow' in a restaurant, you do not get the real gra pow, but instead sweet basil. They are not the same. However, if push comes to shove, sweet basil is better than nothing.
Gapow has a different smell and flavor than basil. Its branches and leaves are covered with tiny hair. It has a hot spicy smell. If you are making 'pad gra pow', don't sacrifice the taste, use all that you've got. It is worth it.
Recipes made with holy basil
Gai Pad Gaprow
Ground chicken stir fried with holy basil
Tom Yum Gai
Hot and sour, lean chicken soup with lemongrass and galangal.
Pad Gaproa Moosub Kaidow
Spicy ground pork stir-fried with fragrant holy basil. Served over jasmine rice, a fried egg and garlic chili fish sauce.
Sen Yai Pad Kee Mao
Spicy hot rice noodles stir-fried with pork and holy basil
Pad Kee Mao
Pork stir-fried with spicy sauce, also known as drunken pork
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