Rum punch

Name: Rum punch
Prep time: 5 min
Total time: 5 min
Cuisine: Caribbean
Ingredients: 175ml freshly squeezed orange juice; 75ml freshly squeezed lime juice; 150ml good-quality golden rum; 50ml sugar syrup; dash of grenadine syrup; dash of bitters; ice cubes, to serve; generous pinch of freshly grated nutmeg; 2 thick slices orange to garnish; maraschino cherries to garnish