Chicken Stuffed with Brie, Spinach & Cranberries

lbs chicken breasts, boneless & skinless

Brie cheese, cut into 6 long slices

small onion, minced

large garlic clove, minced

coconut or avocado oil, divided

spinach, chopped

cranberries, dried (I used sweetened)

thyme, dried

himalayan pink salt

Ground black pepper,