Homemade Falernum

Yields: About 3 cups | Overnight infusion + rich syrup

Ingredients

Infusion (24 hours)

1 cup Rum (overproof white is classic; gold rum works)
Zest of 8 Limes (peeler strips, minimal pith)
½ cup Fresh Ginger, peeled and chopped
¼ cup Almonds, chopped (lightly toasted)
40 Whole Cloves
1 tbsp Whole Allspice Berries
¼ Whole Nutmeg (optional)

Syrup

2 cups Turbinado or Demerara Sugar
1 cup Filtered Water
1 tsp Almond Extract (optional boost)
2 tbsp Fresh Lime Juice (optional; adds brightness and cloudiness — normal)

Instructions

Toast spices & nuts: In a dry pan, toast cloves, allspice, and almonds until fragrant. Cool. Toast nutmeg piece briefly if using.
Infuse: Combine rum, lime zest, ginger, toasted almonds, and spices in a jar. Seal, shake, steep ~24 hours in a cool dark place, agitating a few times. Do not leave lime zest much longer or bitterness creeps in.
Strain: Fine-mesh + cheesecloth or coffee filter. Press solids gently.
Syrup: Dissolve sugar in water over medium heat. Cool. Stir in almond extract if using.
Finish: Combine infusion and syrup. Add lime juice if you want a brighter, Velvet-style profile. Bottle; rest a few days. Refrigerate.

Source: Home-bar falernum in the Kaiser Penguin / Summit Sips tradition (overnight rum infusion + rich syrup) — the DIY path most YouTube tiki bartenders point to instead of hunting Velvet Falernum. Use it in your Banana Chocolate Old Fashioned, Corn & Oil, Mai Tai variants, and Three Dots and a Dash.