In a microwave safe bowl, place the white chocolate, and microwave at 15 second intervals until melted. Stir well until smooth and creamy. Add the sweetened condensed milk, mini marshmallows and stir until all ingredients are mixed well. Place the flour in a separate bowl, and microwave for 1 minute. Stir and set aside. In a separate dish, mix the butter, sugar and vanilla, and stir until well combined. Add the flour to the butter mixture, and then add the white chocolate, and stir well.
Add the green food coloring gel, and stir to mix.
Spray an 8 X 8 dish with Cooking Spray, and pour the fudge into the dish. Sprinkle the red hearts on top of the fudge, and place in the refrigerator for at least four hours. Cut into 9 to 12 pieces, serve and Enjoy!
Notes
Make sure you put the flour in a microwave safe dish, and Microwave for at least 1 minute. Flour is raw, not cooked, and may contain bacteria that could make you very ill. It should be cooked in the microwave before adding to the Fudge ingredients. DO NOT SKIP THIS STEP!