Mix seasonings for chicken in a small bowl (coriander, cumin, turmeric, cayenne pepper). Add white wine vinegar; stir to combine ingredients fully.
Rinse chicken, then place on paper towel, and pat dry. Rub or brush on seasoning mixture, covering both sides of chicken. Heat oil in a large (10-12 inch) non-stick skillet on high heat. Once oil gets hot (but not smoking), add chicken. Cook 2-3 minutes (without moving), then flip chicken over and cook other side 2-3 minutes. Both sides should be golden brown. Transfer chicken to a rimmed plate (rimmed plate will catch juices from chicken). Do NOT clean out skillet.
Place onion slices and minced ginger into the same skillet. Cook, stirring often for 2-3 minutes until onions turn a golden color. Add garlic; stir well while it cooks for 1 minute. Stir coconut milk with a fork or spoon while still in can (it's thick). Pour coconut milk into onion mixture. Add salt. Stir well to combine ingredients. Cook on medium heat until it comes to a boil.
Transfer chicken back into sauce. Pour any accumulated juices into skillet. Reduce heat; cook chicken for 10-12 minutes total (turning once), until chicken is no longer pink in the middle of thickest part. Spoon sauce over top of chicken often as it cooks. When chicken is done, remove chicken from skillet back onto rimmed plate. Cover chicken with foil to keep warm.
Turn heat back up to high; bring sauce to a boil. Cook sauce for 4 minutes, or until the sauce has thickened a bit, and reduced down to about 1½ cups.
While sauce is reducing, toast coconut (for garnish) by placing shredded coconut into a dry skillet; cook on low, stirring often, until it turns golden brown (takes a couple minutes). Remove from heat; transfer coconut to a paper towel to cool. **This step can also be done ahead of time or while the chicken is cooking.
Place chicken breasts onto individual plates or serving platter. Spoon sauce evenly over chicken. Garnish with chopped fresh parsley and toasted coconut, (if desired), and season with additional salt, to taste. Serve, and enjoy!
Coconut Milk Braised Chicken https://www.thegratefulgirlcooks.com/coconut-milk-braised-chicken/