National milkshake day is July 26, and now New York City can celebrate like never before. Go Burger has introduced the Sriracha milkshake, a secret off-menu item that is spicy, sweet, and creamy. Fork in the Road reports that the milkshake was introduced as a lark but is now a permanent addition. The milkshake, called a Fiery Berry Crumble, is comprised of strawberry ice cream, graham crackers, and a few squirts of garlicky, spicy Sriracha sauce. A little ways from N.Y.C., Top Chef Richard Blaise makes a foie gras milkshake, the perfect dessert for those of you in California who are already missing your foie. Make your own spicy milkshake at home, or try one of these fun mix-ins:

Pie or Cake

These add-ins add a hearty textural component and make the “a la mode” topping the actual dessert. Try chocolate cake and caramel ice cream or leftover apple pie with cinnamon ice cream.

Pop Rocks

Toss a few of these exploding candies in your milkshake and feel the candies pop and crackle in your mouth for an unexpected experience. Don’t tell your guests before you serve it, and capture their surprised expressions on camera.

Bacon

An unexpected addition to butter pecan milkshake is crispy bacon. Just cook the bacon, crumble it, and mix it into a milkshake right before serving for a little hint of salt.

Tea

Steep your favorite tea in hot milk, then cool the milk. Use it with your favorite ice cream to create a subtle, gourmet treat. Be sure to brew a strong cup of tea, so the flavor won’t be lost in the shake. Consider complimentary flavor combinations, like ginger ice cream and green tea or chocolate ice cream and peppermint tea.

Vegetables

Avocado is often used in Filipino desserts and gives a creamy texture and sage color to a white milkshake. Add celery or celery root to a peanut butter milkshake for a fun take on the classic afternoon snack.

Sources:
C Wei. (2012, July 4). Sriracha Ice Cream Shake Returns. Retrieved from http://blogs.villagevoice.com/forkintheroad/2012/07/sriracha_ice_cr_1.php. (2012, July 10).