Century Egg & Sesame Sauce Tofu: A Silky Cold Appetizer

Century egg and sesame sauce tofu is a cold Chinese appetizer that turns a divisive ingredient into something genuinely irresistible. Pi dan (皮蛋), the preserved duck egg with its jade-green white and amber yolk, meets soft tofu and a nutty sesame dressing in a dish that takes five minutes and four main ingredients.

I have never loved the texture of a raw century egg yolk. That soft, custardy give always made me pause. This recipe is where it finally wins me over. Blending the yolk into a silken sesame sauce smooths that texture out completely, so all that is left is the flavor, deep and savory, without anything to hesitate over.

Why You’ll Love This Recipe

• Only four main ingredients: Soft tofu, one century egg, sesame dressing, and spring onion. Soy sauce and pepper are already in your pantry.
• Five minutes from fridge to table: No cooking, no waiting, no mess. Slice, blend, pour, done.
• Turns a polarizing ingredient into a crowd-pleaser: The blended yolk loses that custardy texture that puts some people off century eggs. What remains is pure savory depth.

The Culinary Secrets Behind This Dish

The real trick here is what the blender does to the century egg yolk. A raw yolk has that dense, almost clay-like texture that can stop some eaters cold. Blending it with sesame dressing shears the protein structure into a smooth emulsion, so you get all the savory depth and none of the hesitation. The fat in the sesame dressing carries the yolk’s flavor across the palate, and the small amount of water you add lets the sauce pool and cling rather than sit in lumps.

Soft tofu matters because it does not fight the sauce. Firm tofu would hold its shape better, but the slices would jut out like islands and the dressing would slide off. At 1cm thick, soft tofu gives you just enough substance to lift with chopsticks without collapsing, while still letting the sesame-century egg mixture become the main event. The cold temperature keeps the tofu from weeping; serve immediately and the plate stays clean.

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What You’ll Need

Equipment

• Blender: Essential for turning the century egg yolk and sesame dressing into a silky, pour-able sauce. A small personal blender cup works best; you need to scrape down the sides once or twice.
• Serving plate: Needs a slight lip to hold the sauce. Something white or pale shows off the colors: ivory tofu, dark yolk sauce, green onion, the marbled century egg white.

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Ingredients

• Soft Tofu, 300g: Sliced into 1cm thick pieces. The soft texture lets the sesame-century egg sauce become the star, not a topping that bounces off.
• Century Egg, 1: Pi dan (皮蛋). The yolk becomes the base of the sauce; the white provides marbled contrast and a gentle, alkaline snap.
• Spring Onions or Coriander, 1 tbsp chopped: Fresh green hit against the deep savory flavors. Spring onion is more common in Chinese homes; coriander gives a different, brighter lift.
• Sesame Dressing, 3 tbsp: The fat and flavor carrier that transforms the yolk into a pour-able sauce. Roasted Japanese-style works best.
• Soy Sauce, to taste: For seasoning the sauce if your sesame dressing runs sweet.
• Black Pepper, to taste: A small amount of heat to cut through the richness.

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Step-by-Step Cooking Guide

1: Slice and plate the tofu

• Leave the tofu in its box. Slice straight through the plastic into 1cm thick pieces, then turn the box upside down over your serving plate and peel the plastic away. The tofu should slide out in a neat, intact block, already portioned.

2: Prep the century egg

• Crack the century egg shell and peel carefully under running water; the white is fragile and you want clean edges. Separate the yolk from the white with a spoon. Dice the white into small cubes and set aside on a plate.

3: Blend the sauce

• Drop the yolk into your blender cup with the sesame dressing. Blend on high until completely smooth and pour-able, 20-30 seconds. If the mixture clings to the blades and will not move, add a teaspoon of water at a time until it loosens. Taste. Add soy sauce or black pepper if the dressing needs more salt or heat. The sauce should be glossy and run off a spoon in a steady ribbon.

4: Assemble and serve

• Pour the blended century egg sesame sauce over the tofu, letting it pool naturally in the crevices between slices. Scatter the diced egg white across the top, then finish with the chopped spring onions or coriander. Serve immediately, while everything is still cold and the sauce has not had time to weep.

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Ingredient Substitutions & Variations

Ingredient	Substitute	Taste & Texture Impact
Spring Onions / Coriander	Can omit.	Slight lack of aromatics
Sesame Dressing	Tahini thinned with rice vinegar and a pinch of sugar	Slightly less rich
Soft Tofu	Japanese silken tofu, handled very gently; it will collapse more but tastes the same	Different texture, same comfort

Recipe twists:

Variation	Description & Culinary Details
Mala Century Egg Tofu	Top with a spoonful of chili oil or Lao Gan Ma Chili Crisps. The heat plays beautifully against the century egg’s funk.
Century Egg Sesame Noodles	Fold the diced white and a little extra sesame dressing through cooked and cooled glass noodles, then top with the blended sauce. Turns an appetizer into a full cold noodle dish.
Fermented Tofu Boost	Blend in a small knob of fermented bean curu (腐乳) with the yolk. Adds a salty, cheese-like depth that pushes the savory notes even further.

Allergen Friendly Adjustments

• Gluten-Free: This century egg tofu recipe is already gluten-free. The sesame dressing is the only place gluten might hide; check your bottle, or make your own from tahini, rice vinegar, and a touch of sugar.
• Dairy-Free: Already dairy-free. No milk, butter, or cream anywhere in the dish.
• Nut-Free: Sesame is a seed, not a tree nut, but some people with nut allergies also react to sesame. If this is you, swap the sesame dressing for a light soy and rice vinegar dressing; the flavor profile changes but the dish still works.
• Soy-Free: The tofu and soy sauce both contain soy. For a soy-free version, use a soy-free tofu made from chickpeas or pumpkin seeds, and season with salt instead of soy sauce.

Serving and Pairing Suggestions

• Hot Chinese Tea: Pu-erh or tie guan yin cuts through the richness and refreshes the palate between bites.
• Steamed Rice and Stir-Fried Greens: Turn the appetizer into a light meal. Choy sum with garlic or a simple oyster sauce kailan balances the plate.
• Cold Sliced Chicken in Ginger Scallion Oil: Another room-temperature classic that shares the same lazy, no-cook energy.

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Storage, Reheating, and Freezing Guide

• Refrigeration: Not recommended once assembled. The tofu will release water and dilute the sauce within an hour. If you must prep ahead, blend the sauce and store separately in a sealed container for up to 24 hours. Assemble just before serving.
• Reheating: This is a cold dish. Do not reheat; the texture of the tofu changes and the sauce separates.
• Freezing: Does not suit this dish at all. Tofu turns spongy and weeps upon thawing; the sauce would separate and lose its silkiness.

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Frequently Asked Questions (FAQ)

▶ Where do I buy century eggs?

Look for the brown, speckled shell at wet markets, Asian supermarkets, or the refrigerated section of larger chains. In Singapore, I usually find them near the salted eggs. They are also called pi dan (皮蛋) or preserved duck eggs.

▶ Can I leave out the yolk and just use the white?

The yolk is the heart of the sauce, so you really do need it. That soft, custardy texture that some people dislike becomes completely smooth once blended.

▶ What kind of sesame dressing should I buy?

Use a sesame dressing you already like. I reach for the Japanese roasted sesame type, the thick one that comes in a bottle. Kewpie makes a reliable version. Do not use plain tahini; it is too bitter and too thin without the added vinegar and sugar that make a dressing.

▶ Can I use silken or firm tofu instead?

Soft tofu is non-negotiable here, silken is too fragile to slice neatly. Look for the tub labeled soft or medium-soft, usually 300g, the standard Japanese or Singaporean tofu block size.