Combine all ingredients in a shaker. Give it a shake. Strain into a coupe. Garnish with a few dots of Angostura bitters.
For the Jasmine tea-infused Hway 41soju:
Steep the jasmine tea in hot water for 5 minutes. Strain the tea. Use the “washed” tea leaves infuse the Hwayo 41 by steeping in the soju for 25 minutes.
For the Mint Demerara Syrup:
Boil three cups of Demerara sugar and two cups of water until sugar is fully dissolved, approximately 3 minutes. Remove from heat and let cool.
Blend 15 grams of mint leaves into the pint of Demerara syrup. Strain through a fine sieve lined with cheesecloth. The syrup should be refrigerated and is best if used within 24 hours, as freshness declines quickly.