One of my favorite classic cocktails is a sidecar. This past weekend I wanted one at home, but didn't have any lemons or limes. A quick replacement was fresh-squeezed grapefruit juice, and it ended up making quite a delicious drink! I think orange juice would work just the same. The grapefruit flavor really came through, and mixed well with the brandy and sweet triple sec.
2 parts Brandy
1 part Triple Sec (Cointreau or Patrón Citronge)
1 part Fresh-squeezed Grapefruit Juice
Fill the shaker 3/4 with ice, pour in ingredients one by one, cover, and mix well.
Pour and serve immediately.
-- Leslie Anne Wiggins
Photo credit: Pottery Barn