Retreat
Rim tiki glass or similar tall, ornate highball with coconut sugar. Build ingredients over crushed ice. Using a long bar spoon, swizzle stir the drink until the glass begins to frost (approx 45 seconds).
We make our own house lime cordial, and for this recipe I keep a batch infused with lemongrass. You can create a similar product by combining 1 crushed stalk of lemongrass with 1 cup fresh squeezed lime juice, 1 cup water and 1/2 cup cane sugar.
I like it. I'll make it again but might tweak it... Feels like its missing just a touch of something. I will freely admint that I do not have irish whisky instock so I subbed in a 50/50 burbon/rye mix.
Might try bitters? a touch of lemon?