Step 1

Rinse the berries thoroughly and mash them with a potato masher/fork.

Step 2

Heat the blackberries over low-medium heat for around 5 minutes to begin reducing the berries. This will help with texture and intensify the flavor of the berries.

Step 3

During this step you can optionally add in the blue pea flowers. These won't affect the flavor too much, but when mixed with lemon juice will change color, from blue to purple.

Step 4

Cool slightly and then (optionally) press through a sieve to remove the seeds and excess pulp.

Step 5

Mix the berries with the remainder of the ingredients and stir well. Taste and adjust the seasonings and acid/sweetener, as required.

Step 6

Decant into a glass jar or bottle and shake well. For additional flavor, allow the dressing to infuse for an hour or two in the fridge (or even overnight) for best flavor. However, you can also use it immediately.