Melt cocoa butter or coconut oil in a microwave safe bowl for 30 secs to 1 min until liquid. Mix all ingredients except water and citric acid in a bowl using a whisk or your hands (may want to use gloves) to break up large chunks. Spritz a tiny amount of water onto mixture and stir then spritz a tiny bit more. Should feel soft and fluffy and not have any large chunks in it. Stir in citric acid. Fill bath bomb molds very full and close. Let them sit 24 hours before opening to allow the oils/butters to harden again. Drop in your bath and enjoy!