A Hue of Pink or Blue?

As our experiments with edible borage flowers continue, Liam is becoming an expert borage blossom picker.

We have tried eating them fresh but they taste awfully similar to smelt (which also taste a bit like cucumbers).  The cucumber-fish taste kind of weirds us out.

Two weeks old (left).  Today's (right).

Thanks to the many borage blossom-infused vinegar concoctions we currently have on the go, we are now officially out of white wine vinegar.  The accepted infusion time is 3 to 4 weeks, so we are still a ways away from taste testing but colour-wise it is pretty underwhelming.  There is absolutely nothing wrong with pink vinegar but I was pretty excited for blue.  I read some reviews that suggested "enhancing" the colour with blue food colouring, but somehow that seems like cheating.