Der perfekte Mixer by Martin Heile (1950, p.36) — Martin Heile 1950

1 glasscognac — Cognacbase
1 dashJamaica rum — Jamaikarumbase
1 tablespoonsugar — Zuckerbase
water — Wasserdilution
1 sprigMint sprig — Pfefferminzzweiggarnish
2 leafmint — Pfefferminzblatterother
  1. Shake with ice, strain into a julep cup over fresh crushed ice, and garnish with the sugared mint sprig.

Garnish: Sugared mint sprig

Ice: Crushed ice

See also: Mint-Julep, Brandy-Julep

This is explicitly a strained julep rather than a built muddled form.