In 6.15 As You Were, Dawn gives Willow her drink saying, “Your Arnold Palmer, milady”. An Arnold Palmer is a mix of lemonade and iced tea.

In 7.01 Lessons, Willow tells Giles,

“But there’s this look that they get. Like I’m going to turn them all into bangers and mash or something. Which I’m not even really …

In 3.08 Quickening, Cordelia says,

“Nothing a couple of Band-Aids and a pint of Heath Bar Crunch can’t fix”

She is referring to the popular brand of US bandages and one …

Doyle says in 1.01 City of:

“You know, I’m parched from all this yakkin’ man. Let’s go treat me to a Billy D”.

This is a reference to the Billy Dee …

In one of his many attempts at employment, Xander sells Boost Bars in 4.13 The I In Team. They are a real American ‘health’ snack. Xander tries to sell three flavours …

In 1.01 Welcome To The Hellmouth, Giles says:

“I’d much prefer to be home with a cup of Bovril and a good book.”

Bovril is the name of a thick yeast extract, …

Willow can be seen eating Breyers Ice Cream at the Bronze in 2.01 When She Was Bad. She places some of the ice cream on her nose in an attempt …

Lorne says of Lilah in 4.12 Calvary (about the episode Slouching Towards Bethlehem in which his reading of Cordelia was stolen by Wolfram & Hart), “I haven’t forgotten how she poked …

In 6.20 Villains, Clem says, “I was just about to make some Country Time”, referring to the American lemonade product.

Gatorade is an American sports drink, referenced on Buffy three times: In 1.07 Angel, Xander says,

“Duh! I mean, guys’ll do anything to impress a girl. I once drank an entire …

In 5.09 Listening To Fear, Dawn says:

“There’s a girl at school told me that gelatine is made from ground-up cow’s feet, and that if you eat Jell-O, there’s some cow …

We find out in 7.21 End Of Days that Giles has a thing for Jaffa Cakes. They’re made by Jacobs and consist a spongey base, covered in chocolate and filled …

In 5.03 Unleashed Lorne says to Angel:

“Spike showing up your first day in the Wolfram & Hart saddle took the “jolly” right out of the rancher.”

This is a reference to Jolly …

The episode title 6.05 Life Serial comes from the breakfast cereal Life Cereal.

In the second season episode 2.15 Phases, Xander refers to Moon Pie, made in Chattanooga, Tennessee. From MoonPie.com:

“Early in the 1900s, while servicing his territory of Kentucky, Tennessee and West …

When Spike drinks from the Cup of Perperual Torment in 5.08 Destiny, he realises the drink is actually Mountain Dew, a caffeinated, sweet citrus-flavored soft drink produced by PepsiCo, Inc.

In 2.20 Go Fish, Willow says Oreo cookies have “chocolately-goodness”. This may be an in-joke as Alyson Hannigan once did a commercial for Oreo.

Andrew mentions Orville Redenbacher popcorn in 7.12 Potential:

“Are we going to replace the microwave? ‘Cause I was thinking some Orville Redenbacher with some fresh butter flavour.”

In 7.10 Bring On The Night, Dawn tells a suspicious Principal Wood that the reason she and Buffy are in the basement with a shovel is because they were burying a …

Snap, Crackle and Pop are the names of the three characters associated with Kellogg’s Rice Krispies cereals.
Cordy says in 2.10 Reunion:

“Easy, boss. This kid’s ready to snap, crackle and …