Adding multi-word reminders with Siri

I use Siri to add reminders frequently, but I can't figure out how to indicate whether something is a single reminder, or multiple.

For example, I have a reminder list named "Grocery Store." If I tell Siri "Add honey mustard sauce to my Grocery Store list," it will typically add three items: Honey, Mustard, and Sauce.

I tried dictating the use of a hyphen ("add bourbon hyphen cookies to my grocery store list" and I still ended up with two items: Bourbon, and Cookies.