Kim Kardashian was a big spender on '2 Broke Girls' last night!

Mrs. Kanye West made a cameo appearance on the CBS comedy, playing -- who else? -- herself, surprising Max (Kat Dennings) and Caroline (Beth Behrs) at their cupcake shop after plans to shoot an ep of 'Keeping Up With the Kardashians' don't pan out.

"I know how hard us girls work to keep our businesses going," Kardashian says when she shows up at the bakery shop window. "So I'll totally take a cupcake and tweet about it, for real."

But that's not all! Even though the cupcake was on the house, Double K didn't leave without giving the ladies a seriously awesome tip: A $100 dolla bill, y'all.

"Wait, real quick, do you think your mother would adopt me?" Kat Dennings' character calls after Kardashian as she turns to leave.

"This is super awkward," she responds.

Watch the clip above!

See Kim Kardashian + More Celebs Sans Makeup