Build a medium-low campfire that has a grate for cooking. Break the chocolate bar into small pieces using the handle of a wooden spoon (or you can smack it against a picnic bench).
Unwrap and add the pieces to a medium saucepan along with the dulce de leche, 1/2 cup and 1 teaspoon salt.
Place the saucepan, on the grate and over the fire, and cook, stirring occasionally, until the chocolate melts and the sauce is completely smooth, about 5 minutes. If it?s too thick, then add 1 tablespoon of water at a time until desired consistency. Serve with suggested dippers, such as marshmallows, graham crackers, berries, pineapple chunks, red and/or green grapes, shortbread cookies or vanilla wafers (see Cook?s Note).
Stir any leftover fondue into hot water for instant hot chocolate.
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