Peel the small onions and carefully make a small 3-4 mm incisions at the root end of each onion. Gently drip the onions to loosen the layers, which helps them bloom during frying.
In a mixing bowl, whisk together flour, paprika, garlic powder, salt, and black pepper to create the dry seasoning mixture.
Add water gradually to the dry mixture, whisking continuously until you form a smooth, slightly thick batter that enough to coat the onions evenly.
Dip each prepared onion into the batter, turning to coat all sides evenly. Allow any excess batter to drip off briefly.
In a deep frying pan or pot, heat vegetable oil over medium-high heat until hot and shimmering, roughly 350°F (175°C). Use a thermometer for accuracy if available.
Carefully place the battered onions into the hot oil, frying in batches to avoid overcrowding. Listen for bubbling and sizzle as the batter crisps up.
Fry the onions for about 3-4 minutes, turning occasionally, until they are golden brown and crispy on all sides.
Use a slotted spoon to transfer the fried onions onto a paper towel-lined baking sheet to drain excess oil and maintain crispness.
Repeat frying with the remaining onions until all are cooked and golden.
Serve the bite-sized blooming onions hot, with your favorite dipping sauce or just on their own to savor the crispy, tender layers.
