Soft-boiled eggs with a runny yolk and just-set white are a breakfast classic, prized for their rich, silky texture and versatility. This method uses a simple cold-start technique and precise timing to deliver perfect results every time, whether you like your yolk barely warm or slightly thicker. The key is matching the cooking time to your egg size and starting temperature, which this guide breaks down clearly.
Ingredients
- 2 large eggs (about 50 g each, straight from the refrigerator)
- 4 cups (1 L) water, for boiling
- Ice water bath: 2 cups (480 ml) cold water + 1 cup (150 g) ice cubes
- Salt and freshly ground black pepper, to serve (optional)
Instructions
- Place the eggs in a small saucepan and add the 4 cups (1 L) of cold water. The water should cover the eggs by at least 1 inch (2.5 cm).
- Set the saucepan over high heat and bring the water to a rolling boil, uncovered. This typically takes 5–7 minutes.
- As soon as the water reaches a full boil, set a timer for exactly 6 minutes for a runny yolk with a just-set white (the classic soft-boiled texture). For a slightly thicker but still runny yolk, cook for 6 minutes 30 seconds. For a very loose, almost liquid yolk, use 5 minutes 30 seconds.
- While the eggs cook, prepare the ice water bath in a medium bowl.
- When the timer goes off, immediately remove the eggs with a slotted spoon and transfer them to the ice water bath. Let them sit for 1 minute to stop the cooking process. This step is crucial—leaving them in hot water continues cooking the yolk.
- After 1 minute, remove the eggs from the ice water. To peel, gently tap the shell on a hard surface, roll it lightly to crack the shell all over, and peel under cold running water. The white should be firm enough to hold its shape but still tender.
- Serve immediately in an egg cup, or slice in half over toast. Season with salt and pepper if desired.
Tips
- Egg size matters: This timing is for large eggs (about 50 g). If using medium eggs, reduce cooking time by 30 seconds; for extra-large or jumbo, add 30 seconds. Always adjust based on your actual egg size.
- Cold-start is key: Starting eggs in cold water rather than dropping them into boiling water prevents the shells from cracking and helps the whites cook more evenly. If you prefer to lower eggs into boiling water, add 1 minute to the cooking time and use a spoon to lower them gently.
- Ice bath is non-negotiable: The 1-minute ice bath stops the carryover cooking. Without it, the yolk will continue to set and may become jammy instead of runny. If you don’t have ice, run the eggs under very cold tap water for 2 minutes, but the result will be slightly less precise.
- Peeling trick: Older eggs (5–7 days past their pack date) peel more easily than very fresh ones. If using farm-fresh eggs, add 1 teaspoon of baking soda to the boiling water to help loosen the shell.
Serving Suggestions
Serve soft-boiled eggs in traditional egg cups with buttered toast soldiers for dipping. They also make an excellent topping for salads, ramen, or avocado toast—just slice them in half and let the yolk act as a dressing. For a heartier breakfast, pair with sautéed greens and a slice of sourdough.
Variations
- Jammy eggs (7–8 minutes): Cook for 7 minutes for a fudgy, slightly set yolk—perfect for ramen or salads.
- Herbed soft-boiled eggs: After peeling, roll the eggs in chopped fresh chives, dill, or parsley with a pinch of flaky salt.
- Spiced soft-boiled eggs: Add a star anise, a cinnamon stick, or a teaspoon of soy sauce to the boiling water for a subtle infused flavor.
- Pickled soft-boiled eggs: After cooking and peeling, marinate the eggs in a mixture of 1/4 cup (60 ml) rice vinegar, 1/4 cup (60 ml) water, and 1 tablespoon sugar for 30 minutes—delicious on salads.
Storage and Reheating
Soft-boiled eggs are best eaten immediately—the yolk will continue to set as they cool, and the texture degrades quickly. If you must store them, keep unpeeled eggs in the refrigerator for up to 2 days. To reheat, place the eggs in a bowl of warm (not boiling) water for 5 minutes, but note that the yolk will become more set. Do not microwave whole eggs in the shell; they can explode. Peeled soft-boiled eggs can be stored in an airtight container covered with a damp paper towel for up to 1 day, but they will lose their ideal texture.
Frequently Asked Questions
How long do I boil an egg for a runny yolk? For a large egg straight from the fridge, boil for exactly 6 minutes after the water reaches a rolling boil. This yields a set white and a runny, warm yolk. Adjust by 30 seconds for smaller or larger eggs.
Should I start eggs in cold or boiling water? Starting in cold water is more forgiving and reduces cracking. If you start in boiling water, the cooking time is shorter (about 5 minutes for large eggs) but the white may be more rubbery and the yolk less evenly cooked. For consistent results, use the cold-start method.
Why is my egg white undercooked? If the white is still translucent and jelly-like, the egg needs more time. The white sets at a lower temperature than the yolk, but if the water isn’t boiling hard enough or the egg is very large, the center may lag. Increase cooking time by 30 seconds and ensure the water is at a full rolling boil.
How do I peel a soft-boiled egg without breaking it? Gently tap the shell all over, then peel under cold running water. The water helps separate the membrane from the white. Peeling immediately after the ice bath (not waiting longer) makes it easier, as the egg is still slightly warm.
Can I use this method for duck eggs? Yes, but duck eggs are larger—increase cooking time to 7–8 minutes for a runny yolk. Always ensure the white is fully set and firm before serving.
Is it safe to eat runny yolks? The USDA FSIS recommends cooking eggs until the yolk and white are firm to reduce the risk of Salmonella. Runny yolks are safe only if the eggs are pasteurized or have been handled and stored properly. For vulnerable groups (pregnant women, young children, older adults, and those with weakened immune systems), cook eggs until both parts are firm.
Related
- Pork Curry Udon: Cozy Japanese Noodle Bowl
- Sticky Rice vs White Rice: Nutrition Compared
- Peking Duck in Los Angeles: Recipe & Where to Eat
More recipes to cook
Safety notes: safe minimum internal temperatures from USDA FSIS; raw and undercooked fish guidance from the U.S. FDA. Food safety notes
Spotted an error? Tell us and we will correct it (corrections policy).