Make Sauce: Add 2 tablespoons sour cream, 2 tablespoons mayonnaise, 2 tablespoons sriracha/hot sauce, ½ teaspoon garlic salt, Juice of ½ lime, and 2 tablespoons fresh coriander/cilantro leaves (roughly chopped) into a small bowl and stir with a spoon. Make the slaw and use 1 tablespoon of the sauce to mix through. Cover and set aside.
Make Slaw: Add 1 cup shredded red cabbage, ½ cup spinach leaves (lightly packed), ½ cup carrot (cut into matchsticks) and ¼ cup Coriander/Cilantro (lightly packed) and toss. Add 1 tablespoon of the dressing to the slaw and stir through. Cover and set aside.
Prepare Breading Stations: Lay out 3 bowls. In the first bowl, add ½ cup plain flour. In the second bowl add 1 large egg, 1 tablespoon soy sauce and ¼ cup milk and whisk together, and in the third bowl, add ½ cup wholemeal/panko breadcrumbs and ½ teaspoon salt mixed together. Have a separate plate off to the side to place the prawns once they have been coated with the crumbs.
Breading: Dip 200 grams uncooked green prawns (heads and tails removed) one at a time, into plain flour, followed by egg wash, and finally pressing into the crumbs. Then, set aside on a clean plate and repeat until all are done.
Cook Prawns: Preheat a wok or pot with ⅓ cup vegetable oil. Gently add breaded prawns into the oil with tongs or a spoon, two at a time. Cook for 10 seconds on each die, then flip over. Remove when golden brown and place onto absorbent paper towel. Repeat until all prawns are cooked, doing 2 or 3 at t time. (Prawns will cook very quickly; don’t walk away and leave them or they will burn)
Warm the Tortillas: Heat a skillet/grill pan on high and lightly toast 6 wholemeal tortillas one at a time.
Assembly: place a couple of spoons of sauce onto the base of a tortilla, add a layer of slaw, followed by 2 or 3 prawns, then sauce and a few fresh coriander leaves. A drizzle of fresh lime squeezed over also adds a little zing.
Notes
I generally find 2 tacos is enough for a light dinner, and 3 tacos is good for a substantial (or regular) dinner
Try and use up all the prawns – I would avoid storing them as with any fried food, they tend to go soggy and are not that great when reheated.