Black Sesame Soup (黑芝麻糊): Silky, Toasty & Made From Scratch
If the chilled sweet soups of summer are about cooling down, this one is the opposite — a warm, glossy, deeply nutty bowl you wrap your hands around. Black sesame soup, hēi zhī ma hú, is one of the coziest desserts in the whole Chinese repertoire: smooth as velvet, toasty, and just sweet enough.
You may already know black sesame from the lattes and ice creams it's been turning up in lately. This is the original — and once you've had it freshly made, the instant packets never quite measure up. The good news is it's genuinely simple to make at home, and the smell of sesame toasting in the pan is half the pleasure.
The one step that makes all the difference
Black sesame's whole personality lives in its aroma, and that aroma comes from toasting. Raw black sesame tastes flat and a little bitter; toasted, it turns warm, nutty, and fragrant. So whatever else you do, toast the seeds first — it takes a few minutes and completely transforms the result.
You also have a choice in how you build the soup:
- From scratch (my preference): toast and grind whole black sesame yourself. Best flavor, a little more effort.
- From black sesame powder: a fine shortcut — but toast the powder briefly in a dry pan anyway to wake it up.
Either way, a small amount of rice (or glutinous rice) is the secret to that signature silky, slightly thick texture — it's what turns ground sesame and water into a smooth, spoonable soup rather than a gritty drink.
Ingredients
Makes about 4 servings
- 100g (about ¾ cup) black sesame seeds (黑芝麻)
- 40g (about 3 tbsp) raw white rice or glutinous rice (生米 / 糯米)
- 40–60g rock sugar (冰糖) or to taste
- About 1 liter (4 cups) water
- Optional: a splash of milk or coconut milk for a richer, creamier bowl
How to make it
1. Soak the rice. Rinse the rice and soak it in water for at least 1–2 hours (or overnight). This helps it blend smooth later.
2. Toast the sesame. In a dry pan over medium-low heat, toast the black sesame seeds, stirring constantly, for 3–5 minutes until they're fragrant and start to crackle. Don't let them burn — they go from toasty to bitter quickly. Let them cool slightly.
3. Blend. Add the toasted sesame, the soaked-and-drained rice, and about half the water to a blender. Blend until as smooth as you can get it — a minute or two. The smoother here, the silkier the soup.
4. Cook. Pour the blended mixture into a pot, add the remaining water, and bring to a gentle simmer over medium-low heat, stirring constantly so it doesn't catch on the bottom. It will thicken as it cooks, in about 8–12 minutes. Add a little more water if it gets thicker than you'd like.
5. Sweeten and finish. Stir in the rock sugar until dissolved. Taste and adjust. For a creamier bowl, stir in a splash of milk or coconut milk at the end.
6. Serve warm. Ladle into bowls and serve hot — this is a cozy, warming soup at heart.
Tips
- Strain for extra-smooth. If you like it ultra-silky, pass the blended mixture through a fine sieve before cooking.
- Toast a big batch. Toast extra sesame and keep it in a jar — it's a head start on your next bowl, and lovely sprinkled over rice or yogurt too.
- Adjust the thickness to taste. Some like it pourable like a warm drink, others thick enough to stand a spoon in. More water or less rice thins it; less water or more rice thickens it.
- Keeps a few days. Store in the fridge and gently reheat with a splash of water, stirring to bring it back together.
Building your sweet soup pantry
Black sesame is one of those dried staples worth keeping around — it's the base of this bowl and lovely far beyond it. If you're stocking a Chinese sweet-soup pantry from scratch, the Pantry page lists the ingredients and tools I use and recommend.
For lighter, chilled options now that it's warm out, try the chilled snow fungus soup with pear or the classic sweet mung bean soup.
