Purple is the new black this Halloween as restaurants strive to dress up their menus for the holiday.

Fast food chains offer a variety of ghoulish specials, from burgers to sweets, while full service restaurants focus on cocktails.

And since pizza takeout has become a Halloween tradition, some pizzerias are doing holiday promotions.

Some offers require membership in loyalty programs.

Check the chains’ website for details.

Here are some of the specials restaurant chains have announced online, in social media or in news releases.

Quick service

Auntie Anne’s: The pretzel chain has partnered with Spirit Halloween on a holiday bucket to be filled with pretzel nuggets. Spirit Halloween has a matching costume. auntieannes.com

Baskin-Robbins: This year’s treats include a Spooktacular Polar Pizza, already sliced with chocolate chip cookie crust and its flavor of the month,Twix Caramel Crunch ice cream. It’s topped with M&Ms. baskin robbins.com

Burger King: An “Addams Family” menu includes Wednesday’s Whopper with a purple bun, Gomez’s Churro Fries and Morticia’s Kooky Chocolate Shake. bk.com

Carl’s Jr: The Ghost is a burger made with ghost pepper cheese, Diners who visit a restaurant in a holiday costume can get an entrée for $6 in-restaurant, according to a news release. chipotle.com

Cold Stone Creamery: Boo Batter Ice Cream is back. It’s a charcoal-colored version of its Cake Batter Ice Cream.

Other treats include Scaredy Cakes, an ice cream version of cupcakes that come in six packs. coldstonecreamery.com

Duck Donuts: This year’s Spooky Box is available through Nov. 3 with such creations as Spiderweb Surprise, Fright Night and So Mummy. duckdonuts.com

Dunkin’: Halloween Munchkins donut hole treats come with a Halloween bucket. Beverages include the Potion Macchiato, served hot or iced. It’s made with espresso and milk with a “purple marshmallow ube flavor.” dunkindonuts.com

Fatburger: Customers get a free cookie with any purchase in-store or online through Oct. 31. Use the code trickortreat24 at checkout. fatburger.com

Jack in the Box: The Mummy Wrapped Monster Taco is the chain’s signature big taco wrapped in a warm flour tortilla. jackinthebox.com

Krispy Kreme: Scary Sharies, available through Nov. 27, include “Ghostbusters” such as the Slimer Doughnut and the Stay Puft Marshmallow Man. krispykreme.com

McDonald’s: This year’s Boo Buckets have fresh monster faces in orange, white, green and blue. They come with Happy Meals. mcdonalds.com

Qdoba: Rewards members can get a Boogo deal on Oct. 31.

If they order an entree and drink they will get a free entree loaded into their rewards account. qdoba.com

Rubio’s Coastal Grill: Every burrito will be $8.99 for Rubio’s Rewards members on Oct. 31. Scan your QR code at the register for in-store purchases or order digitally. rubios.com

Sonic: Witches Brew is a green apple slush topped with soft-serve and caramel bubbles. It’s available online or through the chain’s app. sonicdrivein.com

Wendy’s: A new Boo! Bags meal includes a Dave’s Single, small fries and a small Frosty, plus a glow-in-the-dark Frosty figure and this year’s Boo! Book coupons. They will be available while supplies last. wendys.com

Pizza

7-Eleven: Rewards members who buy a whole pizza can get a second pizza for free Oct. 30-31. 7-eleven.com

California Pizza Kitchen: Build-your-own or baked Jack-o-lantern pizzas are available through Oct. 31 for takeout or free delivery on orders of $25 or more with the code CPK. cpk.com

Chuck E. Cheese: Pumpkin Pepperoni Pizza and Slime Cookies are on the menu during Boo-tacular, which runs through October and includes trick-or-treating and free tickets for kids who come in costume. chuckecheese.com

Papa John’s: Jack-o-lantern-shaped pizzas start at $9.99. It also comes in a Halloween Bundle with cheese sticks and 2-liter soft drink bottle for around $18.99. papajohns.com

Round Table: A Halloween special includes Large Double Play Pepperoni Pizza and an appetizer for $22.99-$27.99. roundtablepizza.com

Casual restaurants

Applebee’s Grill & Bar: The chain is serving a Dollar Zombie with a Gummi Brain and a $5 Boo Lagoon, made with Bacardí Lime and Malibu Coconut, blue curaçao and pineapple juice. applebees.com

Bar Louie: Specials include $5 Blue Moon drafts and Halloween shots.

The martini of the month is the Purple Reign Martini made with Deep Eddy Lemon Vodka.

A portion of sales will go to No Kid Hungry. barlouie.com

BJ’s Restaurant & Brewhouse: Specials include the Spooky Pizookie served with orange-colored vanilla ice cream, the Unlucky Ducky cocktail and Boo-Berry Sour, plus a kid-friendly Orange Scream-sicle mocktail. bjsrestaurants.com

Chili’s Grill & Bar: Witch’s Brew, made with Lunazul Blanco Tequila, is the margarita of the month. chilis.com

IHOP: Scary Face Pancakes make their annual return. With the purchase of any adult entree, kids younger than 12 can get a free pancake and toppings to decorate it with.

The offer is dine-in only. ihop.com

Johnny Rockets: Customers can get a free cookie with any in-store purchase through Oct. 31. Mention the promo to redeem. johnnyrockets.com