While hanging with pal Jennifer Meyer, Hudson walked down to the bar area, where the bartender gave step-by-step instructions over the popular app on how to make "Kate Hudson's Bloody Cosmo," the signature Absolut Elyx cocktail guests will be treated to Friday night.
The drink, which is garnished with three red cranberries on a festive ghost stick, is surprisingly easy to make. Here's what you need:
1 1/2 parts Absolut Elyx vodka 1 part white cranberry juice 3/4 part blood orange liqueur 1/2 part freshly squeezed lemon juice
According to Hudson's snaps, all you have to do is combine all of the ingredients into a cocktail shaker with plenty of ice (using fabulous copperware like Hudson's brand new bar set is optional, of course).
Then, shake hard until the outside of the shaker is frosty and cold. Once you've given the drink a good shake, strain into a chilled cocktail glass. Top it off by sticking three red cranberries into the ghost stick, and voila!
If this fête is anything like Hudson's previous Halloween parties, expect to see a slew of celebs pulling out all the stops with their costumes. In the past, Katy Perry dressed up as a giant Cheeto, Jessica Alba channeled Slash and Hudson's mother, Goldie Hawn, opted for a Sons of Anarchy-inspired biker look.
Other stars who've made an appearance at past blowouts include Gwen Stefani, Johnny Knoxville, Nicole Richie, Orlando Bloom, Courteney Cox, Tobey Maguire, Sarah Hyland, Bradley Cooper, Fergie and Adam Sandler.
As we patiently wait to see all the creative costumes from this year's soiree, watch the video below to see what the Queen of Halloween, Heidi Klum, wore to a party in New York City in 2015.