Underkeep Alchemy: Use Recipes, Ingredients and the Mortar

Use the recipes and ingredients available in your own game rather than following an unverified ingredient list. The developer added alchemy as an optional system intended to fit naturally into exploration.

What you need

The current player guide describes crafting through the Mortar and Pestle. Recipes and ingredients are found during the adventure; the tool is also reported to support cooking.

Keep track of what a recipe asks for and what is actually present. A material with a similar name or appearance is not proof of a valid substitution.

A careful first craft

1. Find and read a recipe in the game.
2. Check the required ingredients against the shared inventory.
3. Open the Mortar and Pestle crafting interface.
4. Select the intended combination and review the expected result when the interface provides it.
5. Craft and confirm the resulting item before assuming the party now has a particular cure.

This is a workflow based on the described crafting interface, not a hidden recipe solution. The player guide reports that invalid combinations do not consume ingredients, but this site has not independently tested that behavior. Do not risk a unique quest item on that assumption.

Choose useful supplies

Recovery, status cures and situational protection can serve different purposes. Read the finished item’s tooltip and keep its intended use in mind before the next fight. You do not need to treat optional alchemy as a reason to stop all progress until every recipe is found.

What remains outside this guide

Exact ingredient counts, permanent-stat recipes, all cooking results and ingredient locations need current, independently verified evidence. They are not invented here. A recipe seen in an old demo or a pre-release screenshot should not automatically be treated as a full-game guarantee.