Birthday Cake Fudge

Yes, you read that right. Birthday-cake Fudge. Fudge that looks and tastes like... birthday cake. Tasty and fun; which is just the sort of thing that we love around here. I found the recipe right here. Obviously, I used pink candy-coloring, rather than blue, and all the recipients thought this was fan-tabulous.
Thank you to Becky at Mrs. Bettie Rocker for the great idea and for posting the recipe! Here's the recipe to print:

Birthday Cake Fudge
3 cups sugar
1 1/2 sticks margarine (yes, I did use margarine - which I'd not purchased in many years... but candy is fickle and so I stuck to the recipe for once!)
5 oz can (2/3 cup) evaporated milk
12 oz chopped white chocolate chips
7oz jar marshmallow creme
3 or 4 Tablespoons yellow cake mix (just the powdered MIX, not batter)
1 teaspoon vanilla
Blue (or red, pink, orange, yellow...) candy coloring (oil-based color, not regular food color)
Rainbow sprinkles

Line an 8 or 9 inch square pan with foil, leaving the ends hanging over the edges of the pan. Spray foil thoroughly with nonstick spray. Place the sugar, margarine, and evaporated milk in a heavy saucepan over medium heat. Bring to a full rolling boil, stirring constantly, and let boil for 4 minutes. Remove from heat.

Add chocolate chips, marshmallow creme, and cake mix, stirring until chocolate chips are melted. Add vanilla and mix well. Working quickly, pour about 1/3 of the fudge in a bowl and add a few drops of blue candy coloring, mixing and adding until you achieve the desired shade. Pour white fudge into prepared pan, spreading evenly. Spoon colored fudge over the top, spacing it out. Using a sharp knife, draw swirls through the blue and white to create a marbled effect. Sprinkle the top generously with rainbow sprinkles before the top sets up.

Let sit at room temperature until cool, then place in the refrigerator until firm.
Recipe via Confessions Of A Cookbook Queen