Separate the egg yolk and white into 2 bowls. Beat the white with 3 tsp. sugar until peaks form. Beat yolk with remaining 3 tsp. sugar until stiff. Gently fold egg white into egg yolk. Add milk and mix gently. Add NAVAN and mix gently. Pour mixture into an ice-filled cocktail glass. Add the garnish.
Optional Garnish: Cinnamon-Nutmeg whipped cream topped with gold leaf. Directions: Beat 2 oz. whipping cream, with pinch ground nutmeg and pinch ground cinnamon until stiff. Add to top of drink and sprinkle with gold leaf.