In a non-stick skillet, place the walnuts, and cook over medium heat for 3-4 minutes or until lightly toasted and fragrant. Remove from pan and set aside to cool. Meanwhile, grate the apples into a bowl, drizzle them with the lemon juice, and toss well to prevent the apples from turning brown. When the walnuts are cool, place them in a blender or food processor, and finely grind them. Add the walnuts and remaining ingredients to the grated apple and stir well to combine. Taste, season with a little salt and pepper, and add more horseradish if desired. Transfer the dip to a glass bowl. Serve with crackers, chips, sliced bread, or an assortment of raw vegetables.

Yield: 2 Cups