Egg Phosphate
Acid phosphate was a staple of soda fountains–an acidic solution made with salts of calcium, magnesium, and potassium. Not so easy to come by these days, so I built this recipe with citric acid. Otherwise, it’s pretty close to the recipe in Jack’s Manual, with the additions of vanilla extract and orange oil (it’s shaken with a peel), which bring it even further into Orange Julius territory.
INGREDIENTS
1 whole egg
2 teaspoons powdered sugar, sifted
3 oz. orange juice
1 barspoon powdered citric acid
¼ teaspoon vanilla extract
1 orange peel (for shaking)
ABV LEVEL
Combine all in a shaker. Flash blend (or dry shake) to aerate and incorporate ingredients. Add ice and shake well, double strain into a small coupe, and serve. No garnish.