This is essentially a classic bramble (mirtilo is Portuguese for blueberry), but the cachaça, a spirit made from sugarcane, gives it a nifty caipirinha-style twist. Serves one.

1 lime, juiced, plus a twist to garnish (keep the juiced lime shell)
50ml cachaça
15ml sugar syrup
Blueberry liqueur, to finish (Lejay is a good brand)
1 small handful fresh blueberries

Muddle the lime shell in the base of a shaker, add the lime juice, cachaça and sugar syrup, and shake hard. Strain into a rocks glass filled with crushed ice, drizzle a little blueberry liqueur, garnish with a twist of lime and a few blueberries, and serve.

• Garry Foy, The Black Cat at El Gato Negro, Manchester.