Fill a pint glass with ice, and chuck it in the blender. Add two measures of Tequila - I prefer the 'gold' kind - and two measures of orange-flavoured liqueur - I like Cointreau, but it's a bit pricey!

Bottle of Cointreau Blend until all the ice is smashed into little tiny pieces - you may need to cover your ears while doing this!

(Adding the alcohol at this stage means that the ice smashes more easily.)

Chuck in six or eight strawberries, a level tablespoon of castor sugar, and the juice of 2 limes and 1 lemon. Blend until smooth and slushy. Pour (slurp, slurp,...) into a large glass (or two smaller ones, if you insist on sharing with a friend!).

Now stick a wedge of lime on the edge of the glass, dunk in two straws, and serve. Feel free to alter the proportions to taste; you might need to experiment many times.....