Vegan chocolate is chocolate made without animal-derived ingredients. Dark chocolate can be vegan when its ingredients contain no milk or other animal products, but not every dark chocolate qualifies. Vegan milk-style and white chocolates use alternatives to dairy ingredients.
Check the ingredient list and any certification. A vegan claim does not automatically mean that a product is safe for someone with a milk allergy: cross-contact warnings and allergen information still matter.
Vegan chocolate can be eaten directly or used in baking, sauces, and desserts. Its behavior depends on its cocoa, sugar, and fat content, just as with other chocolate.