In a 2 litre saucepan melt butter; saute garlic and onion over medium heat for 3 minutes. Add cumin and chili powder and cook, stirring constantly for 2 minutes. Blend in Coffee Liqueur and cook to reduce liquid by one-half. Stir in hot sauce, Worcestershire, barbeque sauce and salt. Simmer 5 minutes. Remove from heat and add honey. Set aside and allow to cool. Prepare chicken wings by removing and discarding the tips. Divide the wings in half at the remaining joint. Marinate the wings in the cooked sauce for 1 hour at room temperature, or overnight in the refrigerator. To cook,, place the marinated wings on a broiler pan, sprinkle with salt and pepper and broil 5 minutes, turn and brush with the remaining sauce and bake at 180ºC or 15 minutes. Serve hot. Wings can be prepared a day ahead and can be reheated in the oven.