Mix raspberry preserves, soy sauce, apple cider vinegar, Dijon mustard, minced garlic, kosher salt, black pepper, and red pepper flakes in a bowl to create the glaze.
Season the chicken thighs with kosher salt, black pepper, and chili powder.
Heat 2 tablespoons of olive oil in a large skillet over medium-high heat until shimmering.
Add the seasoned chicken thighs to the skillet and sear for about 5-7 minutes on each side until browned and cooked through.
Pour the prepared glaze over the chicken and simmer for 2-3 minutes.
Top with slices of fresh jalapeño and garnish with raspberries before serving.
Notes
Ensure all ingredients are certified gluten-free to avoid hidden gluten.