Place the dried linden flowers, dried elderflower and sliced gentian root in a heatproof jar or teapot. Pour 500 ml boiling water over the botanicals, stir once, and cover. Let steep for 12–15 minutes for a pronounced floral body with gentle bitterness from the gentian. Taste after 10 minutes and stop steeping before excessive bitterness develops.

Strain and cool

Strain the infusion through a fine mesh sieve or cheesecloth into a clean container, pressing lightly on the solids to extract liquid but not excessive tannins. Allow the infusion to cool to room temperature (15–20 minutes), or speed cool by placing the container in an ice bath.

Sour Base & Sweetener

Prepare sweetener

If using raw honey, warm it slightly and mix with an equal weight of warm water to make honey syrup (1:1) so it blends smoothly. Measure 30 ml of honey syrup. If using ready syrup, use as is.

Juice lemons

Juice fresh lemons to yield 60 ml (about 2 lemons). Strain pulp and seeds.

Mixing & Spirit

Combine base components

In a mixing pitcher or cocktail shaker, combine 120 ml of the cooled herbal infusion (strained), 60 ml fresh lemon juice, and 30 ml honey syrup. Stir or shake briefly to integrate.

Add spirits

Add 90 ml gin and 15 ml gentian liqueur (if using) to the mixture. Fill the shaker with ice and shake vigorously for 12–15 seconds to chill and slightly dilute.

Adjust & Serve

Taste and adjust

After shaking, taste the mixture. If the drink is too intense, add up to 60 ml cold water or soda water to bring balance and desired strength. If more floral character is desired, add 15–30 ml additional strained infusion. If more sweetness is required, add 5–10 ml honey syrup at a time.

Strain and garnish

Double-strain the cocktail into two chilled coupe glasses or over fresh ice in two rocks glasses (depending on preference). Garnish each glass with a sprig of fresh linden or elderflower and a lemon wheel or twist. Serve immediately.