In a large bowl, combine the water, salt, pepper, and chile flakes. Add in the chicken pieces and stir to combine. Cover and refrigerate for at least 8 hours or overnight.
When you are ready to cook, remove the chicken from the brine and pat dry with paper towels.
In a shallow bowl, combine the flour, seasoning salt, black pepper, white pepper, cumin, curry powder, paprika, MSG, and cayenne pepper. Mix together until everything is evenly incorporated.
Heat the vegetable oil in a large Dutch oven or heavy-bottomed pot over medium-high heat to 350°F (175°C).
Take the chicken pieces one at a time and coat them in the flour mixture, shaking off any excess. Place the coated chicken pieces into the hot oil and fry for about 10 minutes, flipping halfway through so they are evenly cooked on both sides.
When the chicken is golden brown and cooked through, remove it from the oil and drain on a paper towel-lined plate.
Ready to serve.