Premier Performance Calming Cookies Apple Flavour. Made by Premier Performance, these calming cookies aid horses that suffer with excitability or stress, particularly in training or competition scenarios. The cookies can be fed from the hand as a treat so no need to supplement with any food. Prior to your activity, feed one calming cookie, leave for 30-45 minutes and then proceed as normal, another cookie can be given every 3 hours, so can be given through a show or rally. Calming Cookies are ideal for horses during excitable or stressful situations such as clinics, competitions, clipping, hunting, farrier, box rest, training, loading, travelling and hacking. Feed as and when required, they help your horse to stay calm, confident and focused without affecting their ability to perform.