This is a derivative of Bronuts by Enyawreklaw (e-liquid-recipes.com/recipe/189384) with Black Mile + added for extra chocolate flavor and without the Joy (because there is no joy in Mudville, as we all know).
Black Mile + (or Black Mile Plus) is sold by EcigExpress. It's listed with their tobacco flavors but I can't taste any tobacco notes in it. Just tastes like chocolate to me. 5 day steep is recommended.