Boulevard Brewing Boulevard Puts Whiskey & Peppermint Leaves Together By Reid Ramsay · November 4, 2011 · 1 min read Test Batch that sounds awesome as it is complex – Boulevard Brewing’s Test Tripel Julep. A whiskey barrel aged ale with peppermint leaves. Availability: Undetermined 12.2% ABV Barrel AgedMint Leaves More in Boulevard Brewing Boulevard BrewingBoulevard Brewing is launching Fling, a new craft cocktails lineup in April Fling Craft CocktailsFling Blood Orange Vodka Soda Fling Craft CocktailsFling Mai Tai