Line a bread pan or a similar container with parchment paper, ensuring the edges overhang for easy removal later. Set aside.

In a large microwave-safe bowl, combine the white baking chips, condensed milk, and butter. Heat the mixture in 20-second intervals in the microwave, stirring well after each interval, until the ingredients are fully melted and smooth. Alternatively, melt the ingredients in a double boiler over low heat, stirring frequently.

Separate the melted mixture into three equal portions in individual bowls. Add several drops of orange food coloring to one bowl and yellow food coloring to another, leaving the third bowl uncolored. Stir each bowl thoroughly to ensure the colors are evenly distributed.

Begin with the orange-colored portion, spreading it evenly across the bottom of the prepared pan. Next, layer the yellow portion on top of the orange, smoothing it carefully with a spatula. Finish with the uncolored portion, ensuring each layer is as even as possible.

Transfer the pan to the refrigerator and allow the fudge to set for at least two hours, or until firm. For quicker results, place it in the freezer for approximately 30 minutes, but avoid leaving it too long to prevent over-hardening.

Once fully set, use the parchment paper to lift the fudge from the pan. Slice into small squares with a sharp knife, ensuring the candy corn-inspired layers are visible. Serve immediately or store as needed.