A favorite appetizer for informal and formal parties, the mixture of red, white and blue colors of this canapé make it perfect for a Fourth of July fete. This blue cheese mixture is very versatile and is excellent in a wide variety of dishes... try it melted over filet mignon or over hot pasta. It also makes a wonderful appetizer with sliced pears, crackers or bread slices. The blue cheese mixture freezes very well for up to a month. Thaw in the refrigerator for several hours before returning it to room temperature for serving.
Mix together the cream cheese, butter, blue cheese and walnuts until smooth in a small bowl. Refrigerate for at least 3 hours and up to three days. Let the mixture return to room temperature for about 30-45 minutes before serving. Core and slice the apples before serving. Spread about a tablespoon of the blue cheese mixture on each apple slice and place on a serving platter. Serve immediately.