Warning: cannabis and booze is not for everyone and has varying expressions with the entourage effect -- start small and increment slowly to find your appropriate zone, not over the course of a night but over the course of days. Pour a single dose appropriate to you and your friends' levels, then put the bottle away for the day or night to avoid avoidable mistakes.
If made correctly, 1 tablespoon will yield 9.5 mg of THC. Typical cocktails call for 1.5 ounces or 3 tablespoons of booze. With that said, no cocktail you make should be made solely with this recipe for cannabis infused gin. 1 or half a tablespoon for most will be enough for most, so have another bottle of non-infused gin on the side to finish the recipe.
With all that said though, enjoy this one! A nice boozy cocktail like the Negroni is the PERFECT choice. Wouldn't do more than one though!