Well, I did manage to find one online, which luckily was adapted for home cooking. Perfect for a very special occasion – a real show-off piece if there ever was one.
Try it out if you dare!
Ferran Adria’s Apple Caviar
* Apple Juice 1 ¼ pounds golden apples
* Apple Reduction ¾ pound Granny Smith apples
* Caviar 8 ounces Apple Juice
* ½ teaspoon Alginato
* 1/8 teaspoon citric acid
* Calcium Chloride 2 cups water
* ½ teaspoon calcium chloride
* Garnish 4 Granny Smith apples, peeled, cored and very cold
* ½ teaspoon cinnamon
* 3/8 teaspoon balsamic vinegar
For Apple Juice:
Wash and core apples and cut into quarters. Purée apples and pour liquid into a tall and narrow container. Freeze about 30 minutes so that the impurities solidify and rise to the top. Remove from freezer and extract impurities with a skimmer. Strain juice and reserve.
For Apple Reduction:
Wash and core apples and cut into quarters. Purée apples and pour liquid into a tall and narrow container. Freeze about 30 minutes to solidify impurities, which will rise to the top. Remove from freezer and extract impurities with a skimmer. Strain juice and place over medium heat until reduced to caramel consistency.
For Apple Caviar:
While cold, mix 1/3 of juice with Alginato in blender until Alginato has dissolved. Heat mixture to 205°F, then remove from heat and stir in remaining juice. Add baking soda and stir to dissolve. Strain and freeze until service.
For Calcium Chloride:
Dissolve the calcium chloride in water and reserve.
Purée Granny Smith apples and freeze in a very tall and narrow container 5 minutes. Fill 4 syringes with apple solution. Release one drop at a time into Calcium Chloride and cook 1 minute in water. Strain and rinse caviar in cold water bath. Drain and add 2 teaspoons of Apple Caviar. For each serving, put ¾ ounce of caviar in a cylindrical mold, season caviar with a little Apple Reduction, cinnamon and 3 drops vinegar. Seal and serve.