Preheat oven to 300 degrees. Line an 8x8 inch baking dish with parchment so it hangs over the edges.
Grind the coconut and nuts in a food processor or blender to a desired mixture of coarse crumbs. Add in collagen and cinnamon if desired. Set aside.
In a medium saucepan, combine butter and brown sweetener, whisking until smooth and dissolved, being careful not to scorch it. Off the heat add vanilla, and powdered sweetener.
Add sauce to nut mixture. Press the mixture evenly into baking dish. Press firmly.
Bake for 25 minutes. Remove from oven and allow to cool thoroughly. Remove from dish using parchment paper. Cut evenly into bars.
