1

Combine raspberries and vinegar in a saucepan. Bring to a boil, boil for one minute, and then remove from heat. Stir in oil, thyme and pepper. Cool to room temperature.

2

Pour marinade over boned duck breasts or split Cornish hens. Marinate overnight in the refrigerator, turning occasionally.

3

Bake or grill meat. You can baste with the marinade, but only if you heat the marinade up to boiling point first.