Slice kumquats into rounds, removing the seeds. Place on a baking sheet lined with parchment and toss with avocado oil, a sprinkle of salt and sugar. Spread in an even layer and bake for 25 minutes, stirring half way through.
Melt butter in a non-stick pan, add brown sugar and stir. Add pecans and stir constantly for 5-7 minutes. Lay out on parchment or wax paper in an even layer and set aside.