In a mixing glass, mix 2 parts cold brew concentrate to one part chicory syrup (feel free to adjust the coffee to syrup ratio to suit your sweet tooth). Stir the cold brew coffee and chicory syrup mixture to combine. (The exact amount you need really depends on how much ice you’re using, how big your bowl is, etc.) Fill a bowl with shaved ice. Top with generous amount of the coffee syrup mixture. If you’re making it boozy, add a shot of the NOLA coffee liqueur. Pile on more shaved ice, then pack/sculpt the ice firmly with your hands, creating a mound atop the bowl. Add a bit more of the coffee syrup mixture. Top with a drizzle of condensed milk. Serve with spoon and straw.