Known as Ajitsuke Tamago or Ajitama in Japanese, Ramen Eggs are delicious as a topping on ramen or enjoyed as a snack. Learn how to make these flavorful, soft-boiled eggs at home with just 5 ingredients!
A great bowl of ramen is built upon a few significant components. There’s hot broth, fresh-made noodles, and the toppings. As far as the toppings go, no one can resist a perfectly cooked ramen egg that sits alongside sliced chashu, sheet of nori, and green onions. Some would even argue that ramen egg is a must!
When done right, ramen egg is creamy, silky, full of umami, and ready to enrich and intensify your ramen enjoyment. Truth is, ramen eggs are not just for ramen alone. You can enjoy these delicious eggs anytime, in many different ways!
What Are Ramen Eggs
Ramen eggs are Japanese soft-boiled eggs known for its custardy jammy egg yolk and umami flavor. They are marinated overnight in a sweetened soy-based sauce. In Japan, we call these marinated eggs Ajitsuke Tamago (味付け玉子) or short for Ajitama (味玉) or Nitamago (煮玉子).
While these eggs are excellent on ramen, they are also amazing to enjoy as a side dish or alone as a snack, or included as part of bento. And of course, don’t limit yourself there. You can even add them to your salad or in a sandwich. That’s the magic of ramen eggs. So good and amazingly versatile.
How to Make Ramen Eggs
Ingredients You’ll Need
5 ingredients is all you need and you’ll be surprised at how easy it is to make ramen eggs at home.
- Fresh, good quality eggs, especially if you plan to make soft-boiled eggs
- Soy sauce
- Sake (or water)
For the marinade, you can create your own version with additions (such as chili flakes for spice, etc), but today, let’s stick with the basic.
What changed from the 2011 Recipe?
Some of you might be familiar with the original recipe that I shared in 2011. In the past, I used water instead of sake (Japanese rice wine). However, for food safety reasons, I started making my ramen eggs with sake and came to like this version a lot better.
Why sake? The amino acids in the fermented rice wine actually enhances the flavors of food by adding hints of sweetness and umami, which makes the eggs taste better. In case you’re wondering, we would boil off the alcohol from the sake before marinading the eggs so it’s perfectly safe for kids to consume.
As part of the refinement, I also added a bit of sugar. To put the old and new recipes to test, I had my family try out the two versions multiple times and they concluded that the winner goes to this updated recipe. For those who can’t consume alcohol, you can still use water.
Overview: Quick Steps
- Make the marinade.
- Cook soft-boiled eggs.
- Marinate the eggs overnight.
Important Tips & Tricks to Make Ramen Eggs
Tip #1: Cook the marinade
To make the marinade, I highly recommend cooking it for 1 minute after boiling. This ensures the sugar dissolves and the alcohol evaporates completely leaving only the natural umami and sweetness in the sauce.
Tip #2: Add vinegar and salt when boiling eggs
If you don’t have a particular method of cooking boiled eggs, try adding vinegar and salt to the boiling water before you add the eggs.
I’ve tried many different approaches and I was shocked at the 100% success rate with the vinegar & salt method when comes to peeling my eggs. The peels come off perfectly every time.
Have you tried it? Do you use any “trick” to make boiled eggs? Please share your method in the comment below.
Tip #3: Use refrigerated eggs
Using a fine-mesh sieve/strainer, gently lower your eggs straight from the fridge into the (already) boiling water and lower the heat slightly to a simmer.
Tip #4: Cook 7 minutes from the first egg in boiling water
Start setting the timer for 7 minutes from the first egg submerging in boiling water. It takes about 30 seconds or less to submerge all 4 eggs. (In other words, set the timer for 6 minutes and 30 seconds if you start the timer when you finish submerging all the eggs. Little adjustment matters!
I use large American eggs for this recipe and knowing that egg sizes do vary in different parts of the world, you might need to adjust the cooking time slightly.
Tip #5: Shock the eggs in ice water
Shock the boiled eggs in ice water immediately and let them chill for at least 15 minutes. I use the same ice water to dip the boiled eggs a few times when peeling them. Water goes into the gap and helps peel easily.
Tip #6: Marinate the eggs overnight
You could marinade the ramen eggs for just a few hours or overnight which I prefer. That way I can focus on making ramen the next day while the eggs stay marinated in the fridge waiting for their appearance.
I’d stop marinating around after 2 days, or else it gets salty. Also, soft-boiled eggs should be consumed in 3-4 days.
How to Serve Ramen Eggs:
I hope you’ll give this recipe a try because it can truly make your day better. Here are some of my absolute favorites to enjoy the eggs, BUT I’d like to hear your ideas too.
- Serve with Miso Ramen
- Serve with Vegetarian Ramen
- Serve with Tsukemen (Dipipng Ramen Noodles)
- Serve on Avocado Toast
- Serve with Japanese Curry
- Pack in Bento Box
Tableware from Musubi Kiln
I’ve partnered with a great ceramic online shop from Japan called Musubi Kiln. You will get 10% off with a coupon code JUSTONECOOKBOOK for your purchase. In this post, I’ve used:
- 4 large eggs (50 g each w/o shell) (refrigerated till step 3)
- Gather all the ingredients.
To Make the Marinade
- In a small saucepan, combine all the ingredients for the marinade.
- Bring it to a boil and whisk it a few times to let the sugar dissolved completely. Once boiling, lower the heat to simmer for 1 minute and turn off the heat. Set aside to cool completely.
To Make Soft-Boiled Eggs
- Add 4 cups (1L) water (plus 1 Tbsp vinegar and 1 tsp salt – optional but it helps with the peeling of eggshells) in a medium saucepan and bring it to a boil. There should be enough water to cover the eggs (at least 1 inch above). Once fully boiling (not gentle, but full boil), take out the eggs from the refrigerator and carefully and gently lower one egg at a time into the boiling water with a mesh strainer/skimmer or a ladle. When you add the first egg, set a 7-minute timer. 6 to 6 ½ minutes for runny egg yolk and 8 to 9 minutes for custard-like egg yolk but not runny.
- Lower the heat to maintain a gentle boil. Make sure the water is simmering, but not so strong that the eggs bounce around. If you want your egg yolk to be in the center, gently rotate the eggs with chopsticks once in a while for the first 3 minutes so the egg yolk will be in the center.
- After 7 minutes, immediately take out the eggs and shock them in an ice bath for 15 minutes.
- Once eggs are completely cool, gently crack the wide bottom side of the egg and start peeling vertically to the top. Dip in the ice water a few times which helps with the peeling. Once you peel one section vertically, the rest of the shell comes off easily.
To Marinate the Eggs
- Place the eggs in a plastic bag and add the marinade into the bag. Why am I recommending plastic bag? With a plastic bag, we don't have to use a lot of the marinade to submerge the eggs. This marinade is one-time use for food safety reasons. If you used a container instead of a bag, it requires more marinade (= more condiments) to submerge the eggs.
- Remove the air from the bag and use a clip or rubber band to seal the bag right above the eggs. This way, eggs are completely submerged in the marinade. You can rotate the eggs if you like. Keep in the refrigerator for 8 hours or overnight.
- Take out the eggs and cut them in halves to serve. Use a piece of string, fishing line, or cheese cutter (that's what I used here) to cut the egg in half cleanly. Enjoy the eggs as a snack, in bento, or as a ramen topping. If you want to warm up the eggs, soak the bag in warm water to bring up temp faster.
- Keep the eggs in the refrigerator all the time. The ramen eggs will get saltier so take them out from the marinade after 12-24 hours (depending on your preference). Enjoy the ramen eggs within 3-4 days if your eggs are soft-boiled. If your eggs are hard-boiled, you can keep them in the refrigerator for up to a week. For food safety reasons, I recommend not to re-use this marinade with new boiled eggs. You can repurpose this marinade as a seasoning sauce for your stir fry or simmered dishes, but use it soon.
Editor’s Note: This post was originally published on September 14, 2014. It has been updated with new images, video, and blog content in September 2021.