Put cocoa nibs in a heavy plastic food bag; coarsely crush with a rolling pin.
In a microwave-safe bowl, heat white candy on full power (100%), stirring at 15-second intervals, until soft and smooth, about 45 seconds total.
Drop candy in 1/2-teaspoon portions about 1 1/2 inches apart on a sheet of foil. While candy is still soft, use a small spatula to spread each portion into a 1 1/4-inch round. Sprinkle crushed cocoa nibs evenly over soft candy. Chill until firm, 15 to 20 minutes.
Peel candy from foil. Serve, or store airtight up to 2 weeks.