Start by preparing your Rooibos tea concentrate by brewing 6g (3 heaped teaspoons) with 100ml boiling water for 5 minutes, then strain.

Put all your other ingredients but the ice in a shaker and dry shake to combine all the flavours for about 30 seconds.

Once shaken, add plenty of ice and shake vigorously, until the outside of the shaker is ice-cold.

Distribute the drink with the help of a cocktail strainer between two whisky glasses with a little ice.

Garnish each with a sprig of thyme and serve.