The 10-ounce and 14-ounce Ember Smart Mugs are on sale at Best Buy for $79.99 and $99.99, respectively. That's up to 39% off.

This delicious microwave mug cake is ready in under 5 minutes. Turn out onto a plate if you have the patience, or eat straight from the mug! This recipe can be made vegan if you use plant-based milk.