Roasted Brussels Sprouts with Palm Sugar & Fish Sauce

Brussels sprouts can be delicious when done right. High heat transforms them, drawing out their natural sweetness, creating crisp, deeply caramelized edges, and keeping the centres tender rather than soft. The difference between forgettable and exceptional often comes down to technique.

While you can achieve good browning in batches in a frying pan, roasting on a fully preheated baking sheet makes it simpler and more consistent. The tray must be thoroughly hot so the sprouts begin searing the moment they touch the metal. That immediate contact develops flavour quickly and prevents steaming. Arranged cut side down and left undisturbed, they form a dark, nutty crust — the essential foundation of this dish.

What elevates them further is contrast. A classic Vietnamese nước chấm brings structure and brightness: savoury fish sauce, fresh lime juice, sweetness to round it out, and garlic for depth. With only a handful of ingredients, proportion matters. The goal is balance — savoury first, then bright, with gentle sweetness supporting rather than dominating.

Palm sugar plays a defining role in achieving that balance. Made from the sap of palm blossoms that is gently cooked down and pressed into firm pucks, it retains subtle floral notes alongside caramel warmth. Compared to light brown sugar, it is more nuanced and integrated — rounded rather than sharp. It softens acidity and supports savoury flavours without making a dressing taste overtly sweet.

Because palm sugar contains natural moisture, it should be stored tightly wrapped or sealed well so it does not dry out. When fresh, it will feel slightly soft when chopped or grated — similar to damp sand. If it becomes firm, a brief warming in the microwave will soften it enough to shave or grate easily. Dissolving it in boiling water allows it to blend seamlessly into sauces and dressings.

Red Boat fish sauce provides the savoury backbone. Made from just anchovies and sea salt, then slowly fermented and aged, it delivers clean salinity alongside remarkable depth. Used judiciously, it enhances and rounds other flavours rather than tasting overtly fishy. In this dressing, it replaces both salt and additional umami-building ingredients with precision and clarity.

Together, palm sugar, lime, garlic, and Red Boat fish sauce turn deeply roasted sprouts into something layered, bright, and unexpectedly compelling.

It begins with heat, and ends with balance.

Roasted Brussels Sprouts with Nước Chấm

Serves 4

1.5 lbs Brussels sprouts, trimmed and halved
2 tbsp canola oil
1/4 tsp Diamond Crystal kosher salt
Black pepper

2 tbsp boiling water
2 tbsp chopped or grated palm sugar, packed
1 tbsp Red Boat fish sauce
1 tbsp fresh lime juice
1 small clove garlic, grated
1/4 cup chopped cilantro
2 green onions, sliced
3 tbsp chopped roasted peanuts

1. Place a rimmed metal baking sheet in the oven and preheat to 450°F. Allow the tray to heat thoroughly; this step is essential for proper caramelization.

2. Toss the Brussels sprouts with the oil, salt, and several grinds of black pepper.

3. Carefully remove the hot tray from the oven. Working quickly, arrange the sprouts in a single layer, cut side down. Roast for 12–15 minutes, until deeply browned on the cut surface and just tender through the centre. Transfer to a serving dish.

4. In a small bowl, combine the boiling water and palm sugar, stirring until fully dissolved. Microwave briefly if needed.

5. Stir in the fish sauce, lime juice, and grated garlic. Taste — the dressing should feel balanced, savoury and bright with gentle sweetness.

6. Spoon the dressing over the hot sprouts and toss gently to coat. Scatter with cilantro, green onions, and roasted peanuts before serving.

Pro tip: Once the sprouts are placed cut side down, resist the urge to move them. Leaving them undisturbed allows a deeply caramelized crust to form.

The finished dish is layered and lively — crisp edges, tender centres, fresh herbs, and a dressing that sharpens rather than coats. It demonstrates how thoughtful technique and a few well-chosen pantry ingredients can transform winter produce into something vibrant.

Red Boat fish sauce and traditional palm sugar pucks are available to order online, ready to bring balance and depth to seasonal cooking.