Chef Tips
Wear gloves when deseeding the chillies
Capsaicin binds to the oils in your skin and doesn’t wash off with water. After deseeding a batch of chillies bare-handed, the burning can last for hours and transfers easily to your eyes if you touch your face. Disposable kitchen gloves cost almost nothing and save a lot of discomfort. If you do get capsaicin on your skin, rinsing with whole milk or rubbing with vegetable oil is more effective than water.
Blend while still warm for the smoothest result
Warm chillies break down more easily in the blender than cold ones, giving you a finer, smoother sauce. Let the mixture cool slightly after cooking so it’s safe to handle, but blend before it goes cold. If you want an even smoother sauce, pass it through a fine sieve after blending to remove any remaining skin pieces.
Storage
Store in a sterilised glass bottle or jar in the fridge for up to 3 months. To sterilise, wash in hot soapy water, rinse well, fill with boiling water, swirl and empty. Air-dry completely before filling. If you leave the sauce at room temperature after opening, use within 2-4 weeks. The sauce improves in flavour over the first few weeks as the vinegar and chilli continue to meld.
FAQs
What chilli varieties work best? I've just used your standard long red chilli (cayenne) for this style of sauce. They have enough heat to be interesting without being overwhelming, and both have a good red colour. Bird’s eye chillies work if you want a genuinely hot sauce. Scotch bonnet or habanero give a fruitier, tropical flavour but significantly more heat.
Can I make it hotter? Yes. Leave the seeds in some or all of the chillies. The seeds and white pith contain the highest concentration of capsaicin. You can also add a hotter chilli variety. Blend a small amount of your finished sauce with a single bird’s eye chilli to test how much extra heat it adds before committing to the full batch.