Mix olive oil, lime juice, honey, garlic and spices in a bowl. Add the Jalapeño slices and let sit for 10 minutes
Remove jalapeño slices (some seeds will remain) and marinade chicken in sauce for a few hours or overnight
Heat a cast-iron skillet on high for 2 minutes. cover pan in oil and add marinated chicken breasts
Cook on each side for around 6 minutes or until fully cooked through
Top with extra lime juice and jalapeño slices