2 1/2 cups whole milk 3 ounces very strong espresso 6 egg yolks 1 cup sugar 1 tablespoon vanilla extract 2 cups heavy cream 8 cups strong decaffeinated coffee, cooled 1/4 cup unsweetened cocoa powder In a 3-quart saucepan bring the milk to a boil over medium-high heat. Remove from heat and add the espresso. …