Step 1

Heat up a medium saucepan to a medium-low heat. Add olive oil and chopped onions. Saute for 3-4 minutes, or until onions have started to soften and turn translucent.

Step 2

Add garlic and saute for a further minute

Step 3

Add all remaining ingredients and stir over heat

Step 4

Reduce heat to low and cover the saucepan. Leave to simmer for 20 minutes, stirring occasionally

Step 5

Transfer to container or bottle and store in refrigerator tightly covered

Step 6

Can be stored for 4 days maximum, or frozen for 2 months.