I use a larger mug and add maybe 2 teaspoons of honey and about 1/4 teaspoon of vanilla extract. Then i fill the cup about 1/3 with milk and microwave for 1 minute. Then I froth it with my handy little milk frother.
Place cup in Keurig - I use the medium setting. Give it a good stir when done and Voila!
Optional: I'm adding about a teaspoon of pumpkin pie spice before I froth at the moment. Very yummy.
Recipe to make your own Pumpkin Pie spike mix: