Spiked Satsuma Champagne

Arrange orange slices on a baking sheet lined with wax paper; freeze 30 minutes.

Meanwhile, combine 1/2 cup water and sugar in a 2-cup glass measuring cup. Microwave at HIGH 1 minute or until very hot. Stir until sugar dissolves.

Combine sugar syrup, juice, and liqueur in a pitcher; chill until ready to serve.

Place 1 frozen orange slice in each Champagne glass. Pour 1/4 cup juice mixture into each glass. Top with Champagne, and serve immediately.