Lotro Wiki shows a Cook craftable item "Oak Campfire Kit" to make oak campfire for increased crit chance, cold debuff removal, and increased out-of-combat regen. You of course need the "Oak Campfire Kit Recipe" to make the kit.

Wiki does not show how to obtain this Recipe in-game. Asking around to those who have the Oak Campfire Kit Recipe, no one recalls how or where they got it. I checked Expert Cook, who sells campfire kit recipes, but her inventory only goes up to Tier 6. I checked Snowbourn rep vendor for cook recipes, no campfire kit recipe listed.

Anyone here know how to obtain the Oak Campfire Kit Recipe?