1/4 cup plus 1 tablespoon fresh blood-orange juice
3 tablespoons tequila
1 tablespoon Cointreau
1 tablespoon fresh lime juice
Lime slice, for garnish
Put the grated ginger in a small sieve set over a small bowl and press to extract the juice. Combine the ginger juice with the orange juice, tequila, Cointreau and lime juice in a cocktail shaker filled with cracked ice and shake vigorously for 10 seconds. Strain into a chilled cocktail glass, garnish with the lime slice and serve.