Steamed Red Bean Bun Recipe: Pillowy Soft With Sweet Filling

There’s a distinct satisfaction in pulling apart a steamed bun to reveal a sweet red bean center. This recipe delivers pillowy soft dough with a rich, velvety filling that’s both comforting and elegant.

The dough comes together with simple ingredients, while the filling balances sweetness and earthy depth. Steaming ensures a tender texture that melts in your mouth, making each bite a perfect harmony of softness and flavor.

Ingredients for Steamed Red Bean Bun

Simple pantry ingredients create these tender steamed buns with sweet filling.

The flour is the foundation here—King Arthur or Gold Medal all-purpose work perfectly. Yeast needs to be fresh (check the expiration date), and instant yeast can be used 1:1 if that’s what you have. For the red bean paste, Asian markets carry the best varieties, but Trader Joe’s has a solid canned option. Look for smooth, sweetened paste—chunky styles won’t blend well into the filling.

No red bean paste? Sweet potato puree mixed with a touch of maple syrup makes a great substitute. Brown sugar can be swapped for white, but the molasses notes add depth. If you’re out of vanilla, a pinch of almond extract works in a pinch (use half the amount). The cornstarch helps thicken the filling—arrowroot powder at the same ratio does the same job.

Dough can be prepped a day ahead—store covered in the fridge. Filled buns freeze beautifully for up to 3 months. Steam from frozen, adding 5 extra minutes to the cooking time. Leftover filling keeps in the fridge for 5 days.

Step-by-Step Instructions for Steamed Red Bean Buns

Here is the method to achieve perfectly soft, fluffy buns with a sweet, smooth filling.

Step 1: Activate the Yeast and Prepare the Dough

In a small bowl, combine the 1 tsp Active Dry Yeast with the 0.75 cup Warm Water and 0.25 cup Granulated Sugar. Stir gently and let it sit for 5-10 minutes until the mixture becomes frothy and bubbly—this confirms the yeast is active.

In a large mixing bowl, combine the 3 cups All-Purpose Flour and 0.5 tsp Salt. Create a well in the center and pour in the yeast mixture along with the 2 tbsp Vegetable Oil. Stir until a shaggy dough forms, then knead on a lightly floured surface for 8-10 minutes until smooth and elastic.

Step 2: First Rise and Prepare the Filling

Place the dough in a lightly oiled bowl, cover with a damp cloth, and let it rise in a warm, draft-free place for 1-1.5 hours or until doubled in size. I like to turn on my oven light for a consistent, warm environment.

While the dough rises, prepare the filling. In a small bowl, mix the 1 cup Canned Red Bean Paste, 2 tbsp Brown Sugar, 0.5 tsp Ground Cinnamon, 0.5 tsp Vanilla Extract, and 1 tbsp Cornstarch until smooth. The cornstarch helps thicken the filling so it doesn’t leak out during steaming. Divide the filling into 8 equal portions and roll each into a ball.

Step 3: Shape the Buns

Punch down the risen dough to release the air and divide it into 8 equal portions. Roll each portion into a ball, then flatten into a small disc, about 3 inches in diameter, keeping the edges slightly thinner than the center.

Place a portion of the red bean filling in the center of each dough disc. Pleat the edges of the dough up and around the filling, pinching to seal completely. Roll the sealed bun gently between your palms to smooth the surface and ensure an even shape. Place each finished bun on a small square of parchment paper to prevent sticking during steaming.

Step 4: Second Rise and Steam

Arrange the buns in a steamer basket, leaving at least 1 inch of space between each one to allow for expansion. Cover the basket with the steamer lid and let the buns rise for another 30-45 minutes until they puff up noticeably. You’ll see them grow in size as the yeast continues to work.

Bring 2 inches of water to a boil in the base of your steamer. Once boiling, place the basket over the water, cover, and steam for 15-18 minutes over medium-high heat. Avoid opening the lid during steaming, as the sudden temperature change can cause the buns to collapse.

Step 5: Finish and Serve

Turn off the heat and let the buns sit in the steamer for 2-3 minutes with the lid on. This prevents them from drying out as they cool slightly. Transfer the buns to a serving plate, sprinkle with the 1 tbsp Sesame Seeds if using, and serve warm.

The buns should be soft, pillowy, and slightly sticky to the touch, with a glossy sheen on the surface. Each bite should reveal a sweet, velvety red bean center that complements the light, airy dough perfectly.

Essential Equipment for steamed red bean bun

Steamer Basket

A bamboo steamer basket is my go-to for these buns—it allows steam to circulate while preventing condensation from dripping onto the dough. Look for a 10-inch diameter to fit most pots. I’ve had great luck with EcoNour brand baskets. 💛

Parchment Paper

Cut 3×3 inch squares of parchment to place under each bun before steaming. This prevents sticking and makes transfer easy. I use unbleached parchment for a more natural option, but any type works.

Stand Mixer

While kneading by hand works, a stand mixer with dough hook saves time and ensures consistent texture. I use my KitchenAid on speed 2 for 6-8 minutes. The dough should pull away from the bowl cleanly when ready.

Digital Scale

For perfectly even buns, weigh your dough portions. I use a OXO digital scale to divide both dough and filling into 8 equal portions, about 3.5 oz each for the dough and 1.5 oz for the filling.

Dough Scraper

A bench scraper helps divide dough cleanly and transfer portions without stretching. I keep my Ateco 4-inch scraper handy for shaping. It also helps clean my counter after kneading.

Steaming Pot

Choose a wide pot with a tight-fitting lid—5-6 quart size works well. The pot should be deep enough to hold 2 inches of water without touching the steamer basket. I use my All-Clad stainless steel pot for even heat distribution.

Frequently Asked Questions