Used the last preset save and I wasn't able to get the new recipe from the Rat Cave. I don't want to replay the game again just to have everything get ruined in the next update. Disappointing since I liked the game.
You can get the recipe only after beating the Hunkypunk boss. The recipe will not show in the menu, only when you're crafting things. And this recipe was already in the game (Shade Dagger), just moved there.