I know what everyone is going talk about regarding Burger King’s A.1. Halloween Whopper. They’re going to discuss how one particular ingredient perfectly fits the Halloween theme of the burger. Some people will think it looks disgusting. Others will be fine with it.

Yes, as you have probably guessed, I’m talking about Burger King’s iceberg lettuce. That ghostly white lettuce with a green tint is disgusting, scary, and reminds me of the skin color of many Scooby Doo villains. But those make it an appropriate addition to this Halloween-themed Whopper.

Besides that spooky lettuce, this limited time only item has a 1/4 lb flame-grilled beef patty, a slice of American cheese, tomato, mayonnaise, pickles, onions, and A.1. Thick and Hearty Sauce on a black sesame seed bun.

The bun is not only black, it also has A.1. Sauce flavor baked into it. But it doesn’t get its color completely from the sauce. So what gives it its color? It’s not squid ink, Sharpie pens, charcoal, mold, or Hot Topic. Looking through the bun’s ingredient list and pulling out possibilities, it could be a combination of FD&C Red #40, FD&C Blue #1, raisin juice concentrate, Worcerstershire sauce, caramel color, and FD&C Yellow #6. Mmmm…FD&C Yellow #6.

At times the bun does have a slightly sweet and smokey flavor to it, but it’s faint and it disappears quickly. Maybe my tongue is imagining things or maybe the flavor is a ghost. But while eating the burger, the question I asked myself was, “Why include A.1. Sauce in the bun, if there’s A.1. Sauce in the burger?” Because the bun doesn’t make the burger taste A.1.-ier.

If you’re reading this in the middle of December and want to know what this Whopper tastes like, get into your car, tune your car’s FM radio dial to 101.5 to designate October 2015, and then drive 88 miles per hour…to the nearest Burger King location (or one that’s farther away because you’ll get there quickly if you’re going 88 miles per hour). When you get there, order a Whopper your way with American cheese and A.1. Thick and Hearty Sauce because that’s what this burger tastes like.

The A.1. Thick and Hearty Sauce wasn’t very thick. If it was, much of it wouldn’t have ended up on my hands and the Whopper’s festive mummy wrapper. It tastes exactly like regular thin and light A.1. Steak Sauce, which I’ve enjoyed on overcooked steaks from chain restaurants. Unfortunately, because it kept plopping out of the burger, I didn’t taste the sauce in every bite. Also, I think the mayonnaise diluted its flavor.

The beef patty has that unique Burger King flavor that’s the chain’s fingerprint. It’s a flavor I enjoy. But the tomato, onions, pickles, and white lettuce did a wonderful job of bringing down the overall temperature of the burger, making it slightly unpleasant to eat. As for the cheese, let’s face it, it really doesn’t do anything flavor-wise on a regular Whopper. But it does something color-wise with this burger by matching nicely with the black bun.

Overall, I enjoyed the look of the A.1. Halloween Whopper more than its flavor. The burger is full of Halloween colors, and I have to admit the black bun was cool to experience with my own eyes. But the burger’s flavor wasn’t anything special since it can easily be recreated after the promotion is over. And, of course, that ghost lettuce freaks me out.

Update: There’s one bit of information I need to add. The dyes in the bun might turn your poop green. I’ve experienced this. Others in my household have experienced this. Commenters have experienced it. I apologize for the grossness of this, but I needed to mention it in case someone out there is on a toilet and freaking out because their poop is green. But you have to admit, green poop does fit with the Halloween theme.

(Nutrition Facts – 710 calories, 390 calories from fat, 43 grams of fat, 15 grams of saturated fat, 1.5 grams of trans fat, 105 milligrams of cholesterol, 1530 milligrams of sodium, 52 grams of carbohydrates, 2 grams of fiber, 13 grams of sugar, and 31 grams of protein.)

Item: Burger King A.1. Halloween Whopper
Purchased Price: $6.39*
Size: N/A
Purchased at: Burger King
Rating: 6 out of 10
Pros: Tastes like a Whopper with A.1. Sauce. Black bun is something cool you should see with your own eyes. Very festive; lots of Halloween colors. Mummy wrapper is neat.
Cons: Tastes like a Whopper with A.1. Sauce. Ghost lettuce freaks me out. Black bun baked with A.1. flavor doesn’t have a lot of flavor. A.1. Sauce everywhere. Produce does a great job of bringing down the temperature of the burger. Bun may make your poop turn green.

*Because I live on a rock in the middle of the Pacific Ocean, things are a bit pricier here. You’ll probably pay less than I did.