Booshala is a hearty Assyrian yogurt soup that's creamy and delicious. It's loaded with fresh veggies and herbs and has a spicy kick from the spicy chiles.
Whisk yogurt, salt, citric acid, dried mint, flour, and egg in a 6-quart Dutch oven.
Wash and chop Swiss chard and purslane, then add them to a medium bowl and cover with boiling water until submerged. After five minutes, drain water and squeeze out excess water.
Next, chop parsley, cilantro, green peppers, jalapeños, and onion.
Gradually whisk 4 cups of water into the yogurt until smooth. Add swiss chard, purslane, herbs, vegetables, and rice; whisk to combine over medium heat.
Stir constantly to keep the yogurt from separating. Continue until it comes to a gentle boil, about 20 minutes. Reduce heat and simmer, covered, for another 10 minutes or until the vegetables and rice are tender (stirring occasionally).
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Notes
I highly recommend making this soup with homemade yogurt (Mesta, in Assyrian).
If you'd rather use store-bought yogurt, choose Middle Eastern yogurt or Greek yogurt.
Booshala may be served hot or cold, but I prefer it hot.
Yogurt soup will get thick as it sits, so you may need to add more water to get it to the right consistency.
Store yogurt soup in an airtight container in the fridge for up to 5 days.