Add all but the last ingredient to a shaker with ice and shake until chilled. Strain into a large glass filled with ice and top with sparkling water (diluting as much as or as little as you like). Garnish with a slice of lemon and a few sprigs of thyme.
Add all the ingredients to your Tesco, Ocado etc. baskets.
Like a lot of my cocktails, this one came to me in a dream. I do my best work when I’m sleeping. Which isn’t that often since I have a baby. I had a dream the other night involving a beautiful, boozy, deep purple lemonade, so naturally I had to bring that vision to life. I love whiskey + lemonade anyway, but I have a feeling this variation with blackcurrant and thyme will be in my regular cocktail rotation this summer.
You could always switch up the bourbon for a different type of whisky - try an Irish whisky or a Scotch for slightly different flavours