Café au laits are usually a 1:1 ratio of coffee and milk. Chicory is a bit bitter on its own, so using more milk in this drink than in most coffee drinks is understandable. Pro tip: if you don’t have an espresso machine, you can froth milk using a French press! Simply simmer milk on the stovetop and pour it into a French press. Use the plunger to pump the warm milk until it doubles in volume.