1/4 cup seedless red grapes, sliced
1/2 tablespoon white sugar
1 3/4 fluid ounces cachaca
1 tablespoon acai berry pulp
Place grapes and sugar into a glass; mash well with a cocktail muddler. Fill the glass with ice cubes. Pour in cachaca and (defrosted) acai pulp; stir well. You can also shake the cocktail in a cocktail shaker.