Curried mayonnaise

Whisk together the egg yolk, mustard, lemon juice and ground spices

Very slowly drizzle the oil into the yolk mixture whilst whisking constantly. If the bowl is moving around too much while you do this, sit it on a few damp tea towels to hold it in place

Once the mayonnaise begins to thicken and emulsify, you can start adding the oil a little quicker. Season to taste with plenty of salt and pepper, then sprinkle with chilli flakes and serve