Black Truffle Young Tuber Aestivum Mushrooms Stock Photo 2232116309 Gourmet Bitters For Drinks These Bitter Bastards Black Truffle Bitters are made with the Tuber Aestivum variety of truffle. Looking for the best price for Bitter Bastards Black Truffle Bitters - Tuber Aestivum 10cl Bitters? Use Wines Direct Produced in Royal Tunbridge Wells, UK. The Bitter Bastard - Everyday Bitters. from $15.00. This tumultuous yet flavorful blend is balanced enough to be used anywhere and bitter enough to remind you... While you may be more likely to find black truffle in the kitchen of classy restaurants, cocktail enthusiasts are starting to use them in delicious drinks too. Tuber aestivum - , The Free Social Encyclopedia Try out some experimental cocktail serves - Cognac-based tipples work particularly well with these bitters.