1. In a small saucepan, heat the heavy cream and butter over medium heat until the mixture just begins to simmer.
2. Remove from heat and add the white chocolate chips, stirring until smooth and fully melted.
3. Stir in the orange extract and orange zest, mixing well to combine.
4. Refrigerate the mixture for about 1 hour, or until firm enough to handle.
5. Using a small scoop or spoon, form the mixture into 1-inch balls and place them on a baking sheet lined with parchment paper.
6. Roll each truffle in a mixture of powdered sugar and crushed vanilla wafers until fully coated.
7. Store the truffles in an airtight container in the refrigerator until ready to serve.

Variations & Tips
For a more intense orange flavor, consider adding a few drops of orange food coloring to the mixture. You can also experiment with different coatings, such as finely chopped nuts or shredded coconut, for added texture. If you prefer a less sweet truffle, reduce the amount of powdered sugar in the coating or substitute with cocoa powder for a chocolatey twist. For a festive touch, drizzle the truffles with melted dark chocolate before serving.