Wash the sloes and dab dry. Score the sloes with a knife and fill them into a clean bottle (approx. 1 l content)
Add candy, cinnamon stick, star anise and cloves to the sloes. Fill up with the wheat grain. Close the bottle and let it steep at room temperature for about 2 months. Shake occasionally
Pour sloe liqueur through a very fine sieve (possibly lined with a gauze cloth) or a paper filter. Squeeze the berries lightly. Pour the liqueur into a clean bottle. If necessary, sweeten with some sugar syrup