Chocolate winter dark ale with nibs and blueberry american ale? in Basic Recipes Posted December 13, 2014 4 ozs of nibs in a LBK will give WDA a nice subtle flavor. Add to the keg after you have added the last water, be sure to use a hop sack, or they will clog the spigot at transfer or bottle time. From experience, you will need to give this ale 3 months to develop it's true flavors. They WILL come together nicely, to produce a really nice beer. Try one at 8 weeks, 10 weeks,12 weeks, etc..... and see how the fruit, chocolate, and ale mature. You'll be very happy !