This is a 5 star recipe for a traditional French dessert.
10 ounces bittersweet chocolate or 10 ounces semisweet chocolate, chopped into small pieces
1⁄2-3⁄4 cup milk (or 1/2 to 3/4 cup milk plus 2 tablespoons unsalted butter)
1⁄2 teaspoon vanilla extract
To make the sauce, in a small bowl, combine the chocolate and 1/2 cup milk or cream and melt gently in a barely simmering water bath or microwave on Medium (50 percent) power for about 2 minutes.
Stir until smooth.
Add more liquid if the sauce seems too thick or look curdled.
Remove from the heat and stir in the vanilla.
Use warm fondue immediately or set aside until needed and rewarm briefly.
Source: genius kitchen