Mountain Climber
2 oz.citrus vodka (Skyy or similar)
1/2 oz.Tuaca
1/2 oz.lemon juice (fresh squeezed)
"Frost" the rim of a cocktail glass. (Rub the rim of the glass with lemon juice, then coat with superfine sugar.) Shake ingredients in a shaker half-filled with cracked ice. Strain into the frosted rim glass.
You can order a Mountain Climber at Le Bosquet in Crested Butte, CO. They know the value of a high-quality aperitif to set the mood for a fine dining experience.