Recipe: Red Candied Apples - substitute?

I am NOT a candy maker so I am not sure if this would work or not. But I am wondering if you could use blue food coloring and I am not sure if there is raspberry flavoring or not and substitute in this recipe.

Just a thought.
Halyna

Red Candied Apples

8 to 10 medium apples (sweet or tart, as desired), at room temperature
2 cups sugar
3/4 cup water
1/2 cup light corn syrup
1/2 teaspoon red food coloring
Few drops flavored oil (cinnamon, clove, etc.), if desired
Wooden skewers

Generously grease a baking sheet; set aside. Wash and dry apples thoroughly. Insert wooden skewer in stem end of each apple.

Mix sugar, water, corn syrup in a 2-quart heavy saucepan. Heat to boiling over high heat; reduce heat. Boil gently, without stirring, to 290*F (145*C) on candy thermometer or until a small amount of mixture dropped into very cold water separates into threads that are hard but not brittle. Remove from heat and stir in red food coloring and flavored oil.

Quickly dip apples into syrup, twirling until completely coated. Place on prepared baking sheet to cool.

Makes 8 to 10 candied apples.