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How to Grill Spring Onions

How to grill spring onions on the BBQ. Cook at 220-250°C (425-480°F) for 2-4 minutes, turning once. Step-by-step guide with temperatures and tips for perfect results.

By Bill Ohaire | Published: April 2026 | Last Updated: April 2026

Colourful grilled vegetables on the barbecue

Photo by Askar Abayev on Pexels

Quick Answer

Grill spring onions at 220-250°C (425-480°F) for 2-4 minutes, turning once.

How to Grill Spring Onions

Grilled spring onions (also known as calsots in Catalan cuisine) become sweet and smoky. Eat by holding the charred green end, dipping the white end in romesco sauce, and pulling the tender flesh free with your teeth. A brilliant BBQ snack.

Temperature

220-250°C (425-480°F)

Cook Time

2-4 minutes, turning once

Category

Grilled Vegetables

Step-by-Step Instructions

  1. Prep: Trim root end, keep whole. Brush with olive oil.
  2. Preheat: Get your BBQ to 220-250°C (425-480°F). Clean and oil the grate to prevent sticking.
  3. Grill: Cook for 2-4 minutes, turning once.
  4. Check doneness: White parts slightly softened, green tops charred and wilted.
  5. Serve: Serve immediately for the best texture and flavour.

Tips for Perfect Results

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Frequently Asked Questions

How long do you grill spring onions?

Grill spring onions at 220-250°C (425-480°F) for 2-4 minutes, turning once. White parts slightly softened, green tops charred and wilted.

What temperature for grilled spring onions?

Grill spring onions at 220-250°C (425-480°F). Preheat the grill and oil the grate before cooking.

Related BBQ Guides

All Cooking Times BBQ Vegetables Guide

Sources & References

1
How to BBQ Right (YouTube)
Malcom Reed's side dish and grilled vegetable recipes.
Video
2
Serious Eats
The science of caramelisation — getting the best char on grilled vegetables.
Reference
3
Mad Scientist BBQ (YouTube)
Smoked vegetable experiments and creative BBQ sides.
Video
4
Weber Grill Skills
Weber Australia's vegetable grilling tips and recipes.
Manufacturer