Roast cacao beans or use cocoa powder and cocoa butter
Remove shells from roasted cacao beans if using beans
Grind the cacao nibs into a smooth paste
Melt cocoa butter gently
Mix cocoa paste or cocoa powder with melted cocoa butter
Add sugar to taste
Add milk powder if making milk chocolate
Add a pinch of salt if desired
Add vanilla extract if desired
Stir until smooth and fully combined
Pour the mixture into molds or a lined tray
Tap the molds to remove air bubbles
Refrigerate until firm
Remove from molds and store in a cool, dry place