A little perplexed by the 0.6 ml of the Angostura Aromatic bitters - should it be 1 dash? How do you measure less than a milliliter? I suppose 0.6 ml is approximately 1/8 tsp, so I'm going with 1 dash.

I love it ! Congrats on that recipe !

With egg white, it's good. It's a much (much) more accessible Trinidad sour. Without egg white it's fantastic - it has that sweet, sour note of a good sour but unlike the trinidad sour it doesn't taste like eating a handful of cloves before licking an iron bar. And I do love the trinidad sour.