Perfect Ramen (Soft Boiled) Egg Recipe
Perfect Ramen (Soft Boiled) Egg Recipe is a easy Japanese recipe that serves 3. 80 calories per serving. Recipe by Eating With Kirby on YouTube.
Prep: 30 min | Cook: 6 min | Total: 46 min
Cost: $10.61 total, $3.54 per serving
Ingredients
- 3 pieces Large Egg (room temperature, taken out of fridge 2‑3 hours before cooking)
- 1/4 cup Kikkoman Soy Sauce (regular soy sauce)
- 2 tablespoons Mirin (sweet rice wine)
- 1 teaspoon Soba Sauce (optional, adds extra umami)
- 4 cups Ice Water (for shocking the eggs)
- 1 large Ziplock Bag (for marinating the eggs)
Instructions
Boil Water
Fill a saucepan with enough water to fully cover the eggs, bring to a rolling boil over medium‑high heat.
Time: PT5M
Temperature: 100°C
Soft‑Boil the Eggs
Gently lower the three room‑temperature eggs into the boiling water with a slotted spoon. Reduce heat to maintain a gentle boil and set a timer for 6 minutes (or 5 min 45 sec for first‑timers).
Time: PT6M
Temperature: 100°C
Prepare Ice Water Bath
While the eggs are cooking, fill a large bowl with ice and cold water (about 4 cups).
Time: PT5M
Shock the Eggs
When the timer goes off, immediately lift the eggs with the slotted spoon and plunge them into the ice water bath. Let them sit for at least 5 minutes.
Time: PT5M
Peel Under Water
After the eggs are completely cooled, gently tap each egg to crack the shell, then peel them while still submerged in the water. The water helps the shell slip off cleanly.
Time: PT5M
Make the Marinade
In a small bowl combine 1/4 cup soy sauce, 2 tbsp mirin, and 1 tsp soba sauce (optional). Stir until fully blended.
Time: PT5M
Bag the Eggs with Marinade
Place the peeled eggs into a large Ziplock bag. Pour the soy‑mirin mixture over the eggs, squeeze out as much air as possible, seal the bag tightly with a chip clip or rubber band, and make sure the eggs are fully submerged.
Time: PT5M
Marinate in the Refrigerator
Place the sealed bag in the fridge for 3‑5 days. The longer the marination, the richer the flavor.
Time: PT0S
Serve
Remove the eggs from the bag, slice in half if desired, and enjoy as a snack, ramen topping, or bento addition.
Time: PT0S
Nutrition Facts
- Calories
- 80
- Protein
- 6 g
- Carbohydrates
- 1 g
- Fat
- 5 g
- Fiber
- 0 g
Dietary info: Vegetarian, Contains soy, Contains wheat
Allergens: Eggs, Soy, Wheat (in regular soy sauce)
Ingredient Substitutions
- Instead of Kikkoman Soy Sauce: Tamari (gluten‑free)
- Instead of Mirin: Sake with a pinch of sugar
- Instead of Ziplock Bag: Reusable silicone bag
Equipment Needed
- Saucepan
- Slotted Spoon
- Timer
- Large Bowl
- Ziplock Bag
- Chip Clip or Rubber Band (optional)
- Knife (optional)
Critical Steps — Do Not Skip
- Accurate timing of the soft‑boil (6 min) to achieve a jammy yolk.
- Immediate transfer to an ice‑water bath to halt cooking.
- Peeling the eggs while still submerged for clean shells.
- Squeezing out air and sealing the Ziplock bag tightly so the eggs stay fully submerged.
- Marinating for at least 3 days to develop deep umami flavor.
Chef Tips from the Video
- Use a kitchen timer with a second‑by‑second display for precise 5 min 45 sec timing.
- Add a pinch of sugar to the soy‑mirin mixture if you prefer a sweeter glaze.
- For a glossy finish, give the bag a gentle shake once a day during marination.
Troubleshooting
Egg shells crack during boiling.
Start with room‑temperature eggs and lower them gently into water that’s not a raging boil.
Eggs are overcooked and the yolk is firm.
Reduce the cooking time to 5 min 45 sec and shock them immediately in ice water.
Shells stick to the whites when peeling.
Peel the eggs while they are still submerged in the ice water; the water acts as a lubricant.
Bag leaks and the eggs float out of the marinade.
Squeeze out as much air as possible and seal with a chip clip or rubber band; check for punctures before refrigerating.
Storage
Refrigerator: Keep the sealed bag in the fridge for up to 5 days.
Freezer: Not recommended; texture changes when frozen.
Room temperature: Do not store at room temperature; eggs will spoil.
Make-Ahead Tips
- Marinate for the full 3‑5 days for maximum flavor.
- Eggs can be sliced after marinating and stored in the same bag for quick snack portions.
- If you need to serve sooner, a 12‑hour marination still imparts noticeable flavor.
Frequently Asked Questions
What is the cultural significance and history of soy sauce marinated soft‑boiled eggs in Japanese cuisine?
These eggs, known as ajitsuke tamago, originated as a ramen topping in Japan. The technique of marinating soft‑boiled eggs in a soy‑mirin glaze dates back to early 20th‑century street stalls, where the flavorful eggs added richness to noodle soups.
What are the traditional regional variations of ajitsuke tamago within Japan?
In Tokyo, the glaze is usually lighter with more mirin, while Kansai versions often add a splash of sake or dashi for deeper umami. Some regions also incorporate a touch of rice vinegar for a subtle tang.
How is ajitsuke tamago traditionally served in Japanese ramen shops?
The eggs are sliced in half and placed atop the ramen just before serving, allowing the warm broth to soak into the yolk. They are also served as a side dish in bento boxes, sometimes garnished with sliced green onions.
During which Japanese celebrations or occasions are marinated soft‑boiled eggs commonly enjoyed?
While not tied to a specific holiday, these eggs are a staple at casual gatherings, izakaya outings, and as a convenient protein in lunchboxes for school or work.
What makes soy sauce marinated soft‑boiled eggs special compared to regular boiled eggs in Japanese cuisine?
The brief soft‑boil creates a custardy yolk, and the soy‑mirin glaze infuses the egg white with salty‑sweet umami. This contrast of textures and flavors is unique to Japanese ramen culture.
What are the most common mistakes to avoid when making soy sauce marinated soft‑boiled eggs?
Common errors include boiling the water too vigorously, which cracks shells; over‑cooking the eggs; and failing to shock them quickly, resulting in a firm yolk. Also, not sealing the bag tightly can cause the eggs to float out of the marinade.
Why does this recipe use an ice‑water bath instead of simply rinsing the eggs with cold tap water?
An ice‑water bath rapidly drops the egg temperature, halting the cooking process instantly and preserving the jammy yolk. Rinsing with tap water is slower and can allow residual heat to continue cooking the center.
Can I make soy sauce marinated soft‑boiled eggs ahead of time and how should I store them?
Yes. After marinating, keep the sealed bag in the refrigerator for up to 5 days. The eggs stay fresh and the flavor intensifies; just keep them chilled until ready to serve.
What texture and appearance should I look for when the eggs are perfectly cooked?
The whites should be firm but tender, and the yolk should be a soft, slightly runny custard that jiggles gently when the egg is sliced. The exterior will have a glossy, amber‑brown glaze from the soy‑mirin mixture.
What does the YouTube channel Eating With Kirby specialize in?
The YouTube channel Eating With Kirby focuses on approachable, home‑cooked recipes that blend comfort food with international flavors. Kirby often shares quick tips, kitchen hacks, and cultural background for each dish.
How does the YouTube channel Eating With Kirby's approach to Japanese cooking differ from other Japanese cooking channels?
Kirby emphasizes minimal equipment and short prep times, making traditional Japanese dishes like ajitsuke tamago accessible to busy home cooks, whereas many other channels focus on elaborate techniques or restaurant‑style presentations.
Last updated: September 1, 2026
