Cooking

Cooking is unlocked after crafting your copper oven.

In this section, you turn raw food into cooked food using heat and an oven. Ovens have various tiers, reducing the burn probabilities for each tier crafted.

Food
Eating food provides energy for your Slayer Skill and (if unlocked) Fish Bones. Cooking food requires heat, which is produced in your Firemaking Skill.

Allotments
Eating allotments gives Energy as following:

Research
Each level or research upgrades this to a better version.