Step 1

Juice the oranges: Set aside 1 orange for your garnish. Juice the remaining oranges to yield 2 cups. If you want a smoother drink, pour the orange juice through a sieve to remove the pulp.

Step 2

Mix: In a large pitcher, gently stir together the orange juice, cava, vodka, and gin until combined.

Step 3

Chill: Set the mixture in the refrigerator for at least one hour before serving.

Step 4

Garnish and serve: Slice the reserved orange into thin rounds, or use a vegetable peeler or citrus zester to extract thin strips of orange peel for garnish. Fill large wine glasses with ice and pour in the Agua de València. Garnish with the orange slices or orange twist, and enjoy.