Bull's Milk

Pro tips

• Shake hard for 10–15 seconds to fully integrate the milk; under-shaking leads to separation
• Use chilled milk and chill your glass beforehand for a smoother, colder drink
• Strain through a fine sieve if any curdling occurs during shaking
• Serve immediately after straining; do not let the drink sit before serving

Substitutions

• Old Mr. Boston Imported Rum → any light or aged rum at similar proof
• Old Mr. Boston California Brandy → cognac, armagnac, or bourbon
• Milk → heavy cream (richer) or half-and-half (lighter)
• Powdered sugar → simple syrup (use 0.5 tsp instead of 1 tsp powder)

Storage & make-ahead

Serve immediately after preparation. Do not store pre-mixed.

Equipment

cocktail shaker · strainer · jigger

Can I make Bull's Milk without brandy?

Yes. Substitute cognac, armagnac, or even bourbon for the brandy. The spirit profile will shift but the drink remains balanced.

What type of rum works best?

Light or aged rum both work. Old Mr. Boston Imported Rum is traditional, but any quality rum in that proof range will work.

Should Bull's Milk be shaken or stirred?

Shake vigorously with ice to emulsify the milk and spirits evenly, then strain into a glass.

Can I make a batch ahead?

No. Mix individual servings fresh to prevent milk separation. Pre-batch will curdle or separate over time.

Is Bull's Milk gluten-free?

Yes, if using gluten-free rum and brandy, which most are. Always verify the spirit labels.