The 22nd of February marks a special day for mixologists; both professional and amateur!  It’s Margarita Day (#NationalMargaritaDay). Celebrating one of our favourite cocktails – a simple yet sophisticated classic – the margarita. Not to be mistaken with the Margherita (the pizza version) we’re talking the fun-fuelling, tequila sour cocktail that’s made with just five ingredients. Here we take a …