Thai Steamed Egg Recipe: Silky Custard With Aromatic Herbs

This Thai steamed egg dish delivers a silky custard texture infused with aromatic herbs. A traditional method transforms simple ingredients into something extraordinary.

The gentle steaming process creates a velvety finish, while fresh herbs add layers of authentic flavor. Perfect as a light main course or elegant side.

Ingredients for Thai Steamed Egg

Simple, authentic ingredients create a silky, aromatic Thai custard dish with ease.

The eggs are the foundation here. Room temperature eggs whip to a smoother consistency, which is critical for that signature velvety texture. For fish sauce, Red Boat or Thai Kitchen brands offer authentic flavor without additives. Fresh herbs are non-negotiable—cilantro and Thai chilies should be vibrant, not wilted. Most Asian markets stock kaffir lime leaves, but regular lime zest works in a pinch.

No fish sauce? Extra soy sauce plus a dash of lime juice gets you 80% there. Green onions can be swapped for chives (use double the amount). If Thai chilies are too spicy, serrano or jalapeño peppers work well—adjust seeds for heat. The chicken stock can be vegetable stock for a lighter version. For a richer custard, some cooks add a splash of coconut milk to the egg mixture.

Steamed egg custard keeps in the fridge for 2-3 days, though it’s best served fresh. Reheat gently in a steamer to maintain the silky texture. The aroma intensifies after 24 hours, so don’t be afraid of leftovers. Freezing isn’t recommended—it alters the delicate texture.

Step-by-Step Instructions for Thai Steamed Egg

Master this technique for a custard so smooth it quivers like silk on the spoon.

Step 1: Prepare the Aromatic Base

Finely mince the 3 cloves garlic cloves and thinly slice the 4 whole green onions and 2 whole fresh Thai chili peppers. I prefer to keep the chili seeds for heat, but remove them if you want a milder dish.

Chop the 0.5 cup fresh cilantro, removing any tough stems. In a small bowl, combine the 2 tbsp fish sauce, 1 tbsp soy sauce, 0.5 tsp granulated sugar, and 0.5 tsp ground white pepper. This sauce will infuse the custard with deep umami flavor.

Step 2: Blend and Strain the Egg Mixture

Crack all 6 whole large eggs into a blender. Add the 0.5 cup chicken stock and the prepared sauce mixture. Blend on high for 30 seconds until completely smooth and frothy.

Strain the mixture through a fine-mesh sieve into a pitcher. This step removes any lumps and aerates the eggs, which is crucial for achieving that ultra-silky texture. The strained liquid should look like thin cream.

Step 3: Prepare Steamer and Ramekins

Pour the 2 cups water into a wide pot with a steamer basket. Bring to a boil, then reduce to a gentle simmer. While heating, lightly grease four ramekins with the 1 tsp vegetable oil to prevent sticking.

Place 1 lime leaf at the bottom of each ramekin. This will infuse the custard with a subtle citrus aroma as it steams. Divide the egg mixture evenly among the ramekins, filling each about three-quarters full.

Step 4: Steam to Perfection

Carefully place the ramekins in the steamer basket, ensuring they’re level. Cover with a tight-fitting lid and steam over medium-low heat for 15-18 minutes. The custard is done when the edges are set but the center still has a slight wobble.

Avoid lifting the lid during steaming, as the sudden temperature change can cause the custards to deflate. The surface should look glossy with no visible liquid egg when properly cooked.

Step 5: Garnish and Serve

Remove the ramekins from the steamer and let them rest for 2 minutes. This brief rest allows the custard to fully set. Top each with a sprinkle of the sliced green onions, chili peppers, and cilantro.

Serve immediately while warm. The texture should be tender enough to tremble with each spoonful, yet hold its shape. The aromatic herbs and lime leaves create a fragrant contrast to the rich, savory custard.

Troubleshooting Perfect Results

Overcooked Custard

If your custard turns rubbery, it likely steamed too long. Check at 15 minutes—the center should still jiggle slightly. Remove immediately when edges are set but the middle remains soft. Overcooking causes proteins to tighten, ruining that silky texture. 💡

Watery Texture

Watery results usually mean under-mixing or insufficient blending. Ensure you blend the egg mixture for 30 seconds until completely smooth and frothy. Straining through a fine-mesh sieve also removes lumps and air bubbles that can cause separation.

Deflated Custard

Avoid opening the steamer lid during cooking. The sudden temperature drop causes the air bubbles to collapse, making your custard sink. Keep the lid on until the full 15-18 minutes have passed. Steady heat is key to maintaining that perfect rise.

Sticking to Ramekins

Even with oil, custards can stick. Use 1 tsp vegetable oil to thoroughly grease each ramekin, including the sides. Let them sit for 2 minutes before serving—this helps the custard release cleanly. Non-stick ramekins work even better.

Uneven Cooking

If some ramekins cook faster than others, rotate them halfway through steaming. Ensure your steamer basket is level and the water maintains a gentle simmer. A wide pot with a tight-fitting lid distributes heat more evenly.

Bland Flavor

If your custard lacks depth, check your fish sauce quality. I recommend Red Boat or Thai Kitchen brands. Also, don’t skip the 0.5 tsp sugar—it balances the saltiness and enhances the aromatic herbs. Fresh lime leaves add a citrus note that brightens the dish. 🌟

Frequently Asked Questions