Creamsicle Fudge

One of favorite holiday fudge recipes is orange fudge.  It tastes like a Creamsicle ice cream treat.  The easy recipe yields 2 1/2 pounds of melt-in-your-mouth goodness!
Ingredients
1-1/2 teaspoons butter for greasing the pan
3/4 cup butter
3 cups sugar
3/4 cup heavy whipping cream
1 package white baking chips (10 or 12 ounces)
1 - 7 ounce jar marshmallow creme
3 teaspoons orange extract
12 drops yellow food coloring
5 drops red food coloring
Directions:
Grease a 13-in. x 9-in. pan with 1-1/2 teaspoons butter; set aside.
In a large heavy saucepan, combine the sugar, cream and remaining butter.  Stir over low heat until sugar is dissolved.  Bring to a boil; cook for 4 minutes, stir continuously.  Remove from the heat; stir in  chips and marshmallow creme until smooth.
Remove 1 cup of fudge mixture and set aside.  Add orange extract and food coloring to the remaining mixture; stir until blended.  Pour into buttered pan.  Drop the reserved marshmallow mixture by tablespoonfuls on the top; cut through with a knife to swirl.  Cover and refrigerate until set.  Cut into squares.