1. Combine the butter, herbs, chilli, garlic and cayenne. Roll into a long sausage shape and wrap in plastic film. Freeze, until solid.
2. Preheat the barbecue. Peel back the corn husks a little and remove the silk then close the husks back up. Put the cobs on a medium-heat barbecue for about 10 minutes, until sizzling. Turn often. 
3. Remove from the grill. Carefully cut down the length of the husk with scissors or pull back and open out. Top with slices of the butter. Serve immediately. 

More summer vegetable-based recipes from Jan

• Mum's tomato relish
• Lettuce with bacon and blue cheese dressing