Step 1

Thinly slice the cucumber on a mandolin.

Step 2

Sprinkle the cucumber with salt to draw out some of the moisture. Leave to sit for 1/2 hour.

Step 3

Prepare jars and lids by washing them in warm soapy water.

Step 4

Turn the oven onto 120 degrees.

Step 5

Once the glasses are clean place them on a tray and into the oven to sterilise.

Step 6

After 15 minutes turn the oven off but leave the glasses in the oven.

Step 7

Wash the salt off the cucumber.

Step 8

Combine the cornflour and water until a smooth paste forms. Reserve for later use.

Step 9

Combine all the remaining ingredients in a large saucepan and allow to simmer gently for 40 minutes whilst stirring.

Step 10

Add the cornflour paste to the relish and stir until the mixture has thickened.

Step 11

Remove the relish from the heat and carefully pour the hot mixture into the hot jars.

Step 12

Fill the jars within a centimetre of the top and put the lid on straight away to get a vacuum seal.