Ingredients For coffee Boba / coffee caviar Brewed coffee-250ml Sugar-50gms Carrageenan powder-1 teaspoon Chilled oil-1 cup Preparation In a sauce pan, add brewed coffee, sugar , carrageenan powder , mix it well and then transfer it over stove. Let it boil for few minutes for the carrageenan to activate Transfer into a squeeze bottle after 10 minutes Slowly stream the coffee caviar mix into the chilled oil Strain the pearls and rinse them 5-6 times with cold water