CHOCOLATE CURLS:1. Spread 4 squares melted chocolate with spatula into very thin layer on baking sheet. Chill until firm but still pliable, about 10 minutes.
2. To make curls, slip tip of straight-side metal spatula under chocolate.
Push spatula firmly along baking sheet, under chocolate, so chocolate curls as it is pushed. (If chocolate is too firm to curl, let stand a few minutes at room temperature; chill again if it becomes too soft.)
3. Carefully pick up each chocolate curl by inserting wooden pick in center. Lift onto waxed paper-lined baking sheet. Chill until firm, about 15 minutes. Arrange on desserts. (Lift with wooden pick to prevent breakage or melting.)