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Ryu Soo-young's Golden Egg Salad Sandwich

Chef Ryu Soo-young's famous egg salad sandwich recipe from Fun-Staurant. Features the ultimate golden ratio of mayonnaise and condensed milk with secret moisture-barrier tips.

One of the most beloved options for a quick morning meal or a lazy weekend brunch is undeniably a rich, fluffy egg salad sandwich. However, homemade versions often lack the luxurious creamy depth of bakery-style sandwiches or become soggy within minutes as the bread absorbs moisture from the egg mixture. Chef Ryu Soo-young (affectionately known as 'Eonam-seon-saeng' on KBS 2TV's hit show 'Fun-Staurant') solved these exact issues with a bulletproof golden ratio. The magic secret behind this recipe lies in its sauce composition. While standard egg salad relies heavily on just mayonnaise and sugar or mustard, Chef Ryu introduces condensed milk. The condensed milk creates a silky texture and a delicate dairy sweetness that elevates the dish entirely. A touch of vinegar cuts through the heaviness of the mayonnaise while eliminating any unpleasant egg odor, balanced out with salt and black pepper. Crucially, the eggs are coarsely mashed with a fork rather than puréed, providing a wonderful texture in every single bite. Another game-changing technique is applying a thin coat of soft butter inside the bread slices before assembly. This butter layer acts as a waterproof barrier, preventing moisture from seeping into the bread and ensuring that the slices stay pillowy soft while keeping the sandwich intact. Ready in under 20 minutes, this beginner-friendly recipe brings professional café quality straight into your home kitchen.
⏱️ 20m total (Prep 10m / Cook 10m) 📊 Difficulty: Easy 🌶️ Spice: Mild 👥 Yield: 2 servings
Soft and creamy egg salad sandwich stuffed generously between buttered bread slices

Servings Ingredient Calculator

Default: 2 servings (Adjusts quantities automatically)

2 Servings

🥬 Main Ingredients

  • Egg5 whole
  • Bread Slices4 slices
  • Unsalted Butter1 tbsp

🥣 Sauce & Seasoning

  • Mayonnaise4 tbsp
  • Condensed Milk1.5 tbsp
  • White Vinegar0.5 tbsp
  • Fine Salt0.3 tsp
  • Ground Black PepperA pinch

🌿 Toppings & Garnish

  • Dried ParsleyA pinch

🔄 Ingredient Substitutes & Tips

Original Ingredient Recommended Substitute Characteristics & Tips
Condensed Milk Sugar or Honey Substitute with 1 tbsp of sugar or honey. It provides a cleaner sweet flavor but slightly reduces the rich dairy mouthfeel.
Butter Mayonnaise or Cream Cheese Spreading a thin layer of mayo or cream cheese on the bread also works excellently to block moisture.
Dried Parsley Chopped Chives or Fresh Dill Finely chopped chives or fresh dill add bright colors and fresh herbal aromas.

📊 Estimated Nutrition (Per Serving)

Calories
480 kcal
Sodium
680 mg
Fat
26 g
Protein
18 g

👨‍🍳 Cooking Steps

1

In a pot, bring water to a boil with 1 tbsp salt and 1 tbsp vinegar. Add 5 eggs and boil for 10 minutes to hard-boil.

💡 Tip: Salt helps coagulate any leaked egg whites, while vinegar softens eggshells for easy peeling.
2

Transfer boiled eggs immediately into ice cold water. Once fully cooled, peel off the shells cleanly.

💡 Tip: Cooling thoroughly prevents the whites from sticking to the shell.
3

Place peeled eggs into a large mixing bowl and mash them using a fork or masher.

💡 Tip: Do not blend into a smooth paste. Keep chunky pieces around 0.5cm for better texture.
4

Add 4 tbsp mayonnaise, 1.5 tbsp condensed milk, 0.5 tbsp vinegar, 0.3 tsp salt, and pepper to the mashed eggs and mix gently.

💡 Tip: The half tablespoon of vinegar cuts through grease and brightens the overall flavor.
5

Spread a thin, even layer of softened butter on one side of each bread slice.

💡 Tip: Butter acts as a waterproof barrier to keep the bread fresh and non-soggy.
6

Spoon generous amounts of egg salad onto buttered bread, top with remaining slices, wrap in plastic wrap, slice, and serve.

💡 Tip: Wrapping tightly and letting it rest for 5 minutes makes slicing clean and easy.

🌟 Pro Chef Tips

  • • Condensed milk elevates basic egg salad to a rich café style.
  • • Spreading butter inside bread acts as a moisture barrier against soggy bread.
  • • Wrapping tightly with plastic wrap before cutting creates picture-perfect slices.

⚠️ Avoid Common Pitfalls

  • ❌ Mixing mayonnaise with hot eggs causes the oil to melt and separate; always cool eggs completely first.
  • ❌ Skipping the butter layer lets moisture break down the bread structure, making it soggy and torn.
  • ❌ Over-processing eggs in a blender turns the mix mushy instead of pleasantly chunky.

🧂 Spice & Seasoning Adjustments

  • • 1.
  • • **Mayonnaise to Condensed Milk Ratio**: The 4:1.5 ratio balances deep richness with subtle dairy sweetness.
  • • 2.
  • • **The Magic of Vinegar**: Half a tablespoon of vinegar cuts through heavy mayo and removes egg odor.
  • • 3.
  • • **Fine Ground Pepper**: Using finely ground black pepper ensures uniform distribution without overwhelming pepper flakes.

🧊 Storage & Reheating

  • • 1.
  • • **Refrigeration**: Prepared egg salad can be stored in an airtight container for up to 2-3 days.
  • • 2.
  • • **Chilling Before Assembly**: Chilling the egg salad for 30 minutes enhances firmness and intensifies rich flavors.
  • • 3.
  • • **Wrapped Sandwiches**: Wrap assembled sandwiches tightly in plastic film and consume within 24 hours for best texture.

❓ Frequently Asked Questions

Q. Can I substitute condensed milk with sugar?

A. Yes, you can substitute with 1 tbsp of sugar. However, condensed milk yields a far creamier dairy aroma and smoother consistency.

Q. Would soft-boiled eggs make the sandwich moister?

A. Soft-boiled eggs release excess liquid, making the sandwich watery. A 9-10 minute hard-boil provides the ideal firm texture.

Q. Can I make these sandwiches in advance?

A. Yes, thanks to the butter moisture barrier, you can wrap them tightly and store in the fridge overnight for breakfast.

Q. Can I reduce mayonnaise for a lower-calorie version?

A. You can replace half of the mayonnaise with light mayo or unsweetened Greek yogurt for a lower-calorie option.

Q. Should I cut off the bread crusts?

A. It is optional. Cutting off the crusts after assembling yields an extra soft, bakery-style presentation.

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