This variety of k-cup is $13.78 for 12 k-cups. If you do the math, that's $1.15 per k-cup.
Amazon is a bit wordier with how they named this product. They call it "THE ORIGINAL DO Keurig Green Mountain Donut Shop Coffee, Medium Roast, Vanilla Puff, 12 ct".
Some additional details about this product:
Need to know more? You can read more about this product on Amazon.
Oh, and here's a bunch of pictures if you've never seen k-cup pods before: