Few dishes capture the bold spirit of Sichuan cuisine like Shui Zhu Yu (水煮鱼), or Boiled Fish in Chili Oil. Despite its name, there’s nothing plain about it. Tender slices of fish are poached gently, then drenched in a blazing-hot chili oil that releases an intoxicating aroma of garlic, dried chilies, and Sichuan peppercorns.

It’s dramatic, deeply flavorful, and surprisingly achievable at home.

🌶️ What Is “Shui Zhu”?

“Shui Zhu” literally means “water-boiled,” but in Sichuan cooking, it refers to a technique where proteins are poached and then finished with sizzling oil poured over spices. The result:

Silky, delicate fish
A rich, spicy broth
Layers of mala (numbing + spicy) flavor

🐟 Ingredients (Serves 3–4)

For the Fish:

500g white fish fillets (grass carp, tilapia, or basa)
1 egg white
1 tbsp cornstarch
1 tsp salt
1 tbsp Shaoxing wine
½ tsp white pepper

For the Base:

2 cups napa cabbage or bean sprouts
2 cloves garlic (minced)
1-inch ginger (sliced)

For the Broth:

2 cups chicken stock or water
2 tbsp doubanjiang (fermented chili bean paste)
1 tbsp soy sauce
1 tsp sugar
Salt to taste

The Signature Chili Oil Finish:

1/2 cup dried red chilies (cut)
2 tbsp Sichuan peppercorns
3 cloves garlic (minced)
3 tbsp cooking oil (heated until smoking hot)

🔪 Preparation Steps

1. Slice and Marinate the Fish

Slice the fish thinly at an angle. In a bowl, gently mix with egg white, cornstarch, salt, Shaoxing wine, and white pepper. Let it rest for 15–20 minutes.

This creates that signature silky texture known in Chinese cooking as “velveting.”

2. Prepare the Vegetable Base

Blanch napa cabbage or bean sprouts briefly in boiling water. Drain and spread them at the bottom of a serving bowl.

This layer absorbs the spicy broth beautifully.

3. Build the Broth

In a wok:

Heat a little oil and sauté garlic and ginger
Add doubanjiang and fry until the oil turns red
Pour in stock or water
Add soy sauce, sugar, and salt

Bring to a gentle simmer.

4. Poach the Fish

Slide fish slices into the simmering broth one by one:

Cook for about 1–2 minutes until just opaque
Do not overcook—fish should be tender and silky

Pour everything over the vegetable base in your serving bowl.

5. The Dramatic Chili Oil Finish 🔥

Top the dish with dried chilies, Sichuan peppercorns, and minced garlic.

Heat oil until smoking hot, then carefully pour it over the spices. You’ll hear an immediate sizzle—that’s where the magic happens.

🍽️ Serving Tips

Serve immediately while hot and aromatic
Pair with steamed rice to balance the spice
Best enjoyed family-style

🔥 Pro Tips for Perfection

Choose fresh fish: Firm, mild white fish works best
Control spice level: Adjust chili quantity to taste
Don’t skip doubanjiang: It gives depth and authentic flavor
Slice evenly: Thin, uniform slices cook perfectly

🌏 Why You’ll Love This Dish

Boiled Fish in Chili Oil is more than just spicy—it’s layered, aromatic, and comforting. The tender fish contrasts beautifully with the bold, fiery broth, creating a dish that’s both intense and balanced.

Once you master this, you’ll have one of Sichuan cuisine’s most iconic recipes in your repertoire.