Dissolve the honey in the hot coffee and blend together.
Place the fresh salmon fillets in a dish. Scatter over the thyme leaves and season with the salt and black pepper. Pour over coffee and honey mixture.
Cover the dish with cling film, place in the refrigerator and leave to marinate over night.
Heat a heavy based frying pan and place the salmon fillets skin side down, cook for 3-4 minutes. Turn the fillets over. Pour over the remaining marinade and cook for a further 3-4 minutes until salmon is cooked and marinade reduced to a thick consistency. Spoon the cooked marinade over the salmon and garnish with fresh thyme leaves.
Serve with new potatoes and a green salad.
The Salmon fillets with the marinade can be wrapped in tinfoil parcels and cooked on a barbecue.