Gather cocoa butter, powdered sugar, milk powder, and vanilla
Melt the cocoa butter gently over low heat or in a double boiler
Remove from heat and stir in the powdered sugar and milk powder
Add vanilla and mix until smooth
Blend or whisk thoroughly to remove any lumps
Pour the mixture into molds or onto a lined tray
Tap gently to release air bubbles
Let it cool at room temperature until set
Chill briefly if needed to fully harden
Unmold or break into pieces once firm