Season the chicken breasts evenly on both sides with salt, pepper, and dried oregano.
In a small mixing bowl, whisk together the honey, red pepper flakes, and apple cider vinegar to prepare the hot honey glaze.
Heat olive oil in a large heavy-bottomed skillet over medium-high heat.
Add the chicken breasts to the skillet and sear for 6-7 minutes per side, or until the internal temperature reaches 165°F (74°C).
Reduce the heat to medium and add the minced garlic, sautéing for 60 seconds until fragrant.
Pour the hot honey mixture over the chicken breasts, flipping them to coat thoroughly.
Simmer the sauce for 2-3 minutes until it thickens into a glossy glaze.
Remove the skillet from heat and immediately sprinkle the crumbled feta over the chicken.
Garnish with fresh parsley and serve with the remaining pan glaze.