Here’s the guide to using the Onsen Egg recipe and cooking Onsen Egg in Heartopia. Find out the onsen egg recipe ingredients, cooking location, and more.
Heartopia Onsen Egg Recipe
Heartopia Onsen Egg Recipe was given as a reward from the Egg Hunt Event (Feb 2026). To get the recipe, players had to find and obtain the event egg daily for 16 days. On completing the 16-egg collection, players were rewarded with the Onsen Egg recipe. I don’t know if this recipe will be available in the future, but for now it’s only limited to those who participated in this event. Below, I have shared how to use this recipe and cook an onsen egg.
How to Cook an Onsen Egg [Heartopia Onsen Egg Recipe]
To cook Onsen Egg, you need pasteurized egg (ingredient; 100 coins), which you can obtain from Massimo, the chef. Now, unlike other food items, which you can cook on a stove, onsen eggs can’t be cooked on the stove. You need to head to the Onsen region lake (I have marked the location below) to cook these eggs.
Once you have the pasteurized egg, go to the center of the Onsen region. You will find a lake (near the insect event starting point) with a few baskets inside the water. Go close to any basket and tap the cooking button. Select the Onsen Egg recipe that you got as a 16-egg collection reward from the Feb 2026 Egg Hunt event. Use the pasteurized egg as an ingredient and start cooking.
That’s it for now in this post on Heartopia Onsen Egg Recipe: How to Cook Onsen Egg?
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