Process Biscuits: In a high-speed food processor, crush biscuits into a fine crumb. Transfer the crumbs to a large mixing bowl.
Add Dry Ingredients: Stir in coconut and orange zest until well combined.
Mix in Condensed Milk & Rum: Pour in the condensed milk and rum, mix thoroughly until all dry ingredients are coated. Tip: Use your hands for easier mixing!
Prepare for Coating: Place extra coconut in a small bowl for coating and set aside.
Form Balls: Scoop a half tablespoon of mixture, roll into a ball, then roll in coconut until coated. Place balls directly into an airtight container or on a lined baking sheet. Continue the process with the remaining mixture.
Chill: Refrigerate rum balls for 1 hour until firm. Enjoy!
Notes
Store: Keep the rum balls in an airtight container in the fridge for 1 week to 10 days. If preparing in advance, store them for 5-7 days in the refrigerator in an airtight container.Freeze: For longer storage, freeze the rum balls in a freezer-safe zip-lock bag or container for up to 2 months. Be sure to remove any excess air and label with the date. To thaw, leave them in the fridge overnight or at room temperature for a few hours.