The inspiration for our Marzipan Chocolate Stout home brew came from the brainchild of yours truly – and the lack of available ingredients. I initially dreamed up a chocolate hazelnut beer – and Frank put the recipe together. By the time brew day came around, we had not yet sourced hazelnut extract – or any other medium for getting hazelnuts in there. But, I did find almond extract – which smells exactly like marzipan! In the future, we’ll be trying a hazelnut chocolate stout. But for this recipe, it’ll be chocolate and almonds.
If you’re looking for inspiration from a chocolate stout, might I suggest Boatswain Chocolate Stout. I think that the Boatswain beer is very well balanced, and that the chocolate flavor comes out quite well. Moreover, in a world of expensive craft brews, the price is extremely reasonable.
One fun thing about this recipe is the wide variety of grains used. The were light and dark roasted malts included, as well as oats. When photographed (below), the diversity of grains is apparent.
Fun fact from Brewmaster Frank: the difference between a sweet stout and your traditional stout is the choice of malts. And, what makes a milk stout is the addition of milk sugar to the brew. Since this brew is not a milk stout, we are not using milk sugar.
For our recipe, we used the Kroger (Vons private label) brand extract almond extract. The cacao nibs are from Navitas Naturals. Frank observed that they make a nice snack. They taste like dark chocolate on the end, although are very bitter.
One oz. of cacao nibs are put in the end of the boil. One oz. is also added to the secondary fermenter. Two oz. of almond extract went at the end of the boil. Adding raw, unsanitized ingredients to the secondary fermenter may have been the culprit of our fermentation issues – discussed in the gravity section.
The wort was simply overpowered by the almond extract. Frank suggested that the wort reminded him of Amaretto. How wort changed into beer over the course of the process was surprising. As for the color – it’s a stout: the wort was black as night.
Original Gravity & Final Gravity
Perhaps it was the heavily roasted malt – but for our homebrew session for the weekend, we missed the greatest mark on our stout. Our goal was 1.066, with an actual of 1.058, for a difference of 0.008. Maybe the dark roast was in impediment to squeezing the bag of grain. The lesson remains the same: squeeze the bag harder. Alternatively, we can twice mill the malt or sparge via pouring hot water over the grains after soaking in the mash tun.
The final gravity also fell short of our target. Fermentation was incomplete – because of either one or two reasons. Firstly, there is the dastardly temperature control. Secondly is any contamination from from the cacao nibs into the secondary. While the latter is possible, the former is more likely.
After the cacao nibs and almond extract danced with our dark brew for six weeks we had our results! The resultant product was a smooth delicious chocolatey stout. Unfortunately, the marzipan was nowhere to be seen. This was quite distinct from the wort – which was over powered by the almond extract. This would appear that just like the floral notes added by hops to a brew, the contribution made by almond extract is ephemeral; it fades over time – and relatively quickly at that.
Chocolate Marzipan Stout #2?
The only possible solution – or the only solution that I can think of – is putting more almond extract, or at a different time. Instead of adding the extract to the wort, it will be added just prior to bottling, alongside the priming sugar.