Heartopia Onsen egg recipe: how do you cook it?

The Heartopia Onsen egg recipe is a rare Winter Frost Season recipe, which can be obtained under certain conditions. What's more, this dish is cooked differently from other recipes. So how do you prepare Onsen egg? Here are the prerequisites and the exact method for enjoying this dish.

Step 1: Requirements for cooking Heartopia Onsen egg recipe

The Heartopia Onsen egg recipe is specific to the Winter Frost Season. And there are no secrets to obtaining it: you need to take photos of the 16 eggs hidden in the thermal mountain area.

⚡ My tip: visit my dedicated guide to Heartopia egg locations before 13 March 2026!

Step 2: Where to buy pasteurised eggs?

Have you collected all the Winter Frost Season eggs? Then you've unlocked the Heartopia Onsen egg recipe! You can now cook this dish, but first you need a pasteurised egg.

It's easy to find: just go to Massimo's stand in the Winter Frost Season hub and buy one. It will cost you 60 gold coins.

⚡ Warning: Massimo sells classic egg cartons, and pasteurised eggs. So you'll need to buy the right ones!

Step 3: cooking Onsen eggs

Have you bought a pasteurised egg from Massimo? If so, you can now cook Heartopia Onsen egg recipe. But don't make the same mistake I did! It's not possible to cook this dish on a conventional cooker, like mushroom pie for example.

Here's how to do it:

1. Go to one of the thermal springs, located in the Thermal Mountain
   
   
   
   
2. Look for an eggbasket in the spring water
   
   
   
   
3. Interact with one of the baskets
4. Now select the pasteurised egg you have just bought from Massimo
   
   
   
   
5. Wait for the preparation to finish

And now you've cooked your first Onsen egg in Heartopia!

⚡ To find out more: I've prepared a full list of Heartopia recipes, so go and have a look!

What is the Onsen egg used for in Heartopia?

You're probably wondering what the Onsen egg is used for? Here are a few possible uses:

• You can sell it to Albert Jr for 130 gold coins.
• Consume it to regain energy
• Share it with another player. Simply go to your bag, select the Onsen egg and click on "Share".

As you can see, the Heartopia Onsen egg recipe is not a common recipe: it requires certain prerequisites to be obtained and can only be cooked in thermal springs. If you're looking for more Heartopia tips, we've got just the thing:

• Heartopia's guide to blue skin
• The guide to adopting a cat
• The crossbreeding guide

Enjoy the game!