Salted Egg Yolk Lava Croissant

This Salted Egg Yolk Lava Croissant recipe is buttery, crispy and oozing with creamy salted egg. This is the perfect balance of sweet and savoury. Be forewarned, this mouth watering pastry will make you want more! Check out my shortcut recipe using Costco croissants!

You won’t regret making this croissant with silky lava custard. Even my mom asked me for the recipe! I first had this sweet and salty combo when I was in Montreal. It was the perfect balance of sweetness and salt. I instantly wanted to recreate it as soon as I got home.

Check out my Chocolate Dipped Flat Croissant with Matcha and Garlic Croissant recipes!

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Here’s Why You Will Love Salted Egg Yolk Lava Croissant

• Delicious: If you are a fan of sweet and savoury, you’ll love this combination.
• Simple: You can make this recipe regardless of your cooking skill level. It’s very easy to make.
• Flavourful: The salted yolk filling is creamy and rich. Served warm, your first bite will have oozing molten, lava filling

Equipment and Tools to Make Salted Egg Yolk Lava Croissant

Pot: To boil eggs

Cutting board and knife: To cut yolk to fine pieces and slice croissants

Kitchen scale: For accurate measurements

Measuring spoons or cups: An alternative to the kitchen scale

Medium bowl: To mix filling

Baking sheet and parchment paper

Ingredients

Duck eggs: You can buy fresh whole duck eggs like I did and reserve the whites for a different use.

Unsalted butter: The yolk is already salty. No additional salt is required.

Icing Sugar: Balances all the flavours together. Icing sugar gives the filling its sweetness without the texture of sugar granules

Custard powder: This gives the molten, lava effect of the filling and enhances the creamy consistency.

Milk: For a creamier filling, you can use evaporated milk or homo milk. I used 2% as this was what I had on hand.

Croissants: Day old croissant works best. I slice them in half but I don’t cut them all the way.

Salted Egg Yolk Lava Croissant Options and Substitutions

• I highly recommend using custard powder as it enhances the milk flavor. If you don’t have custard powder, substitute it with corn starch.
• Using a milk with a higher fat content works best. I did use 2% for this recipe and it was still okay. I wouldn’t use 1% or skim milk.
• You can use full size or mini croissants for this recipe. Just make sure your store bought croissant is made with butter. The butter in the croissant ensures that this will turn out flaky.

How to Make Salted Egg Yolk Lava Croissant

Let’s make this dish!

Cook the duck eggs. In a medium pot, boil water over medium heat. Gently place eggs in pot and simmer for 10 minutes. Peel and remove yolks. Cut salted egg yolks to fine pieces.

Make the filling and slice the croissants in half. Mix the butter with icing sugar. Add yolks and custard powder. Slowly stream in milk until mixed thoroughly. Refrigerate while you cut the croissants. I didn’t cut through entirely.

Assemble salted egg yolk croissants. Depending on the size of your croissant, spread 2 tbsp of filling in the center. Optional, place a dollop on top of the croissant. Bake at 350F for 2 minutes. Enjoy while it’s warm!

Storage and Reheating Tips

Store leftovers in an air tight container in the fridge up to three days. Warm the croissants up before eating. I prefer to put them in a toaster oven or air fryer for a minute but it does get messy as the filling will start oozing out.

Make Ahead Options

You can make the filling ahead of time and leave it in the fridge for up to 3 days. The filling will harden in the fridge. Leave at room temperature for 30 minutes until it is spreadable. Bake for 2 minutes.

Recipe Tips

Use fresh salted eggs for best-tasting results. Reserve the egg whites for a different dish. If they’re not available, then the vacuumed sealed salted egg yolks will work as well.

A kitchen scale will guarantee accurate results. I have included the measurements if you do not have one.

It is best to use room temperature butter to ensure a smooth filling. Creaming the butter and sugar together initially will ensure a consistent filling without lumps.

Use day old butter croissants. I buy my croissants from Costco instead of making them from scratch. This recipe is a quick and easy version and it’s okay to cheat sometimes!

Frequently Asked Questions

What is a salted egg croissant? It is a flaky croissant with a custard like filling, made from salted duck egg yolks.

What does a salted egg yolk taste like? Salted duck eggs are cured in a brine. When cooked, the yolk is creamy and rich, with an intense savoury yolk taste.

What goes well with salted egg yolk? Salted egg yolk recipes are gaining in popularity. You can see them in both savoury dishes like crab and shrimp and sweet treats in buns or cookies. It’s also so good with congee!

Is salted egg yolk healthy? While it is nice to enjoy this treat, the yolk itself is high in sodium and cholesterol.

Are salted eggs cooked already? The salted eggs that you buy at the grocery store are uncooked and should be in the refrigerator until you are ready to consume it. Salted duck eggs are usually boiled before they get incorporated into other recipes or you can throw it into your rice cooker as the rice cooks.

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Lastly, if you make my Salted Egg Yolk Lava Croissant be sure to leave a comment or give this recipe a star rating! I love to hear from you guys and respond to each and every comment. Also, don’t forget to tag me @cookwith.chopsticks and #cookwithchopsticks on Instagram! Looking through the photos of recipes you have made makes me sooooo happy! You can also follow along on TikTok, Facebook and Pinterest.