To make concentrate: In small saucepan, combine orange juice, lime juice, orange peel, lime peel, black peppercorns, cardamom pods and cinnamon sticks. Bring to boil over high heat then turn to low; simmer until liquid has reduced by half, 3-4 minutes. Let cool and strain out solids. Transfer to glass jar and store until ready to use.

To make mocktail: Combine concentrate with ginger ale over ice.

Garnish with lime wedge or orange wedge, if desired.