Chris (and anyone else), I'd love to hear your step by step to making the toast bitters. I've been making bitters for a few months, and I've had mixed results. I started out by loosely following Jamie Boudreau's recipe for Cherry Bitters. His idea is to make several different infusions, and add them together to get the desired flavor profile, so one flavor doesn't overpower the whole batch. To that end, I started out with: 1 bottle 100* rye + 1 tbsp. wormwood + 1 tbsp. calmus root + 1 tbsp. black walnut leaf + 1 gentian root 1 bottle 151* everclear + 4 oz. dried seville orange peel 1 bottle 100* bourbon + 6 oz. espresso beans 1 bottle 100* bourbon + 1 vanilla bean + 1 cinnamon stick + 1 nutmeg + 1 tbsp clove + 4 star anise Now if you're thinking to yourself, sweet jesus, that seems like a lot of bittering agent, you are right. The rye, after about two weeks, was insanely bitter, but also had a really unpleasant earthy flavor (by which I mean it tasted like dirt). Not having done this before, my unwillingness to scrap that bottle pretty much ruined the first batch. I ended up making another bottle of rye with 1/2 tbsp. of wormwood, calmus and gentian, and dropped black walnut leaf (which was only there for flavor). Once this bottle was done, I mixed them up in a ratio of about 1 part bitter blend 1 part orange blend 4 parts flavor (coffee) blend 2 parts spice blend The resulting bitters are good, if maybe a little timid. They lack the complexity of an Angostura, but maybe that's the point when doing a single flavor bitter. At this point, I've got plenty of the bitter, orange and spice blends left over and am working on a few more flavoring blends (walnut, peanut butter) that I will mix up. If anyone has any thoughts or comments I'd love to hear them. Thanks!