Omni Parker House (Boston.), Omni Chicago Hotel, and Omni Mount Washington Resort (Bretton Woods, New Hampshire) are partnering in a cross-city promotion to celebrate “National Boston Cream Pie Day,” on October 23. For every slice or pie purchased that weekend, Omni will make a donation to its “Say Goodnight To Hunger” initiative. From now until October 31, Omni Parker House will donate $10 from every pie sold online to “Say Goodnight to Hunger.”

Omni Parker House—As the founder of the Boston Cream Pie, Omni Parker House will host a weekend-long celebration in honor of the timeless dessert. On October 22 and October 23, guests can purchase a Boston Cream Pie—by the slice or a whole pie—and a portion of proceeds will be donated to “Say Goodnight to Hunger.”

Omni Parker House also offers delivery of their iconic pie to anywhere in the country. Boston Cream Pies are prepared fresh and shipped frozen directly from the bake shop in an insulated unit with ice packs.

Omni Chicago Hotel—676 Restaurant & Bar at Omni Chicago will offer slices of Boston Cream Pie October 22 and October 23 using Omni Parker House’s famed recipe for $6.76. All proceeds will be donated to the Greater Chicago Food Depository as a part of Omni’s “Say Goodnight to Hunger” initiative.”

Omni Mount Washington Resort—On October 23, Omni Mount Washington will offer a day full of fun events dedicated to the delectable treat. Guests can enjoy activities such “Build Your Own Boston Cream Pie” class, sip on Boston Cream Pie martinis, and more.

The signature dessert, originally known as the “Parker House Chocolate Cream Pie,” was a culinary creation of Boston’s Omni Parker House in the 1850s by Armenian-French chef M. Sanzian. Today, the two-layer golden cake filled with sweet pastry cream and frosted with chocolate glaze remains a crowd favorite as the official dessert of Massachusetts.