Step 1: Line an 8x8-inch square baking dish with parchment paper, leaving some overhang for easy removal. Lightly grease the paper.

Step 2: In a medium-sized saucepan, combine the white chocolate chips and sweetened condensed milk. Heat over low heat, stirring constantly, until the mixture is smooth and fully melted.

Step 3: Remove the saucepan from the heat. Stir in the vanilla extract, almond extract (if using), and salt. If you want a green tint, add a few drops of green food coloring and mix until evenly distributed.

Step 4: Fold in the chopped pistachios, reserving a small handful for garnishing.

Step 5: Pour the mixture into the prepared baking dish, spreading it evenly. Sprinkle the reserved pistachios on top, gently pressing them into the surface.

Step 6: Refrigerate the fudge for at least 2-3 hours, or until it’s firm and set.

Step 7: Lift the fudge out of the pan using the parchment paper overhang. Cut into small squares with a sharp knife and serve.