In a rocks glass, muddle one white sugar cube, 3 dashes of Angostura bitters and 1 teaspoon of water until smooth.
Add more cubed ice and pour over 50ml Glen Moray Elgin Classic Single Malt Whisky.
Continue to stir, diluting the drink, adding more ice, until the sugar has fully dissolved and your cocktail is perfectly balanced.
Garnish with a twist of orange zest expressed over the glass and two cocktail cherries