For the orgeat:

1. Combine 1.5 cups toasted, unsalted pumpkin seeds with 2.75 cups almost boiling water, 1 tsp ground cinnamon, and 1 tsp salt.
2. Blend on high for about 1 minute or until smooth, then strain the mixture through a fine-mesh strainer or cheesecloth.
3. While your pumpkin seed “milk” is still hot, weigh your mixture on a baking scale and add an equal amount of granulated white sugar by weight. Stir to completely dissolve sugar.

For the cocktail:

1. Add all ingredients to a cocktail shaker and shake to combine, for about 20-30 seconds.
2. Strain with a cocktail strainer and fine mesh strainer into a double rocks glass filled with ice.
3. Garnish with a lime wheel and freshly grated nutmeg.