Does salting your cooking change the effects/regen hearts of a recipe?
Rock Salt increases the duration of whatever effects your meal has. If you are just using food to restore hearts, Rock Salt has no effect.
Fish Skewer
- Hyrule Bass
Restores 2 Hearts
Salt-Grilled Fish
- Hyrule Bass
- Rock Salt
Restores 2 hearts
On the other hand, if you have a duration-based effect, it will increase the duration.
Mighty Fish Skewer
- Mighty Porgy
Restores 2 Hearts, Small Attack Buff 0:50
Mighty Salt-Grilled Fish
- Mighty Porgy
- Rock Salt
Restores 2 hearts, Small Attack Buff 1:50
Mighty Salt-Grilled Fish
- Mighty Porgy
- Rock Salt
- Rock Salt
Restores 2 hearts, Small Attack Buff 2:20 (All additional Rock Salts only add +0:30 seconds, instead of +1:00 from the first)