Line an 8x8 inch baking pan with parchment paper and set aside.
In a large microwave safe bowl, combine the whole chocolate chips and sweetened condensed milk and microwave in 30 second increments until fully melted.
3 cups white chocolate chips, 14 oz sweetened condensed milk
Stir to combine then add in the green gel food coloring and the vanilla extract. Add more green gel food coloring if needed.
1 tsp vanilla extract, neon green gel food coloring
Pour the fudge onto the prepared baking pan, decorate with the red sprinkle hearts and let it set in the fridge for 3 hours or until completely set. Remove the fudge from the pan and slice into 36 square pieces.