Use a tart variety of lemon to give this cake a good citrus flavour. Elderflower cordial has a distinctive flavour which I really enjoy, but you could substitute with 1 teaspoon vanilla extract.

lemon cordial and snap pea syrup. Influences from Japan are apparent, like the Rice & Nori which uses a seaweed-infused Toki Japanese whisky with brown rice syrup and house orange bitters.

maple syrup, elderflower cordial, lemon juice, and soda. That said, if your sights are set on bourbon or whiskey cocktails, maple syrup makes a great sweetener swap in a tangy bourbon smash ...