Combine the bourbon, lemon juice, orange curaçao and grenadine in a shaker.
Add ice and shake hard for 12 seconds.
Strain into a glass packed with crushed ice.
Top with a short splash of soda water.
Garnish with an orange slice and a straw.
The Daisy is a sour sweetened with a liqueur instead of sugar, documented by Jerry Thomas and everywhere in American bar books by the 1880s. Daisy is margarita in Spanish, and the Tequila Daisy is exactly what it sounds like.
My Bar Shelf reads your shelf and shows you every cocktail you can make from what you already own, including Whiskey Daisy.