Mix the coconut base: Combine the unsweetened shredded coconut and sweetened condensed milk in a medium bowl, stirring thoroughly until the mixture is fully incorporated and sticky. Make sure all coconut flakes are coated with the condensed milk for proper binding.
Shape into bars: With slightly damp hands to prevent sticking, take portions of the coconut mixture and form them into 12 small log-shaped bars. Place each formed bar on a parchment-lined baking sheet, spacing them apart to prevent sticking together.
Freeze until firm: Place the tray of coconut bars in the freezer for approximately 20 minutes. This chilling step is crucial as it helps the bars hold their shape during the chocolate dipping process and aids in setting the chocolate coating more quickly.
Melt the chocolate: In a microwave-safe bowl, heat 10 oz of the chocolate in 30-second intervals, starting with 30 seconds, then reducing to 15-second increments. Stir thoroughly between each heating interval to ensure even melting and prevent scorching.
Temper the chocolate: Add the remaining 5 oz of chocolate to the melted chocolate and stir continuously until completely melted and the mixture becomes smooth and glossy. This tempering method gives the chocolate coating a professional finish with a nice snap.
Dip the bars: Remove the coconut bars from the freezer. Using two forks, dip each chilled bar into the melted chocolate, ensuring complete coverage. Gently tap the forks against the side of the bowl to remove excess chocolate, then carefully transfer the coated bar back onto the parchment paper.
Allow to set: Let the chocolate-coated bars sit undisturbed until the chocolate has completely hardened. The chilled coconut centers will help the chocolate set more quickly, typically within 15-20 minutes at room temperature.