National Microwave Oven Day December 7, 2014December 7, 2014 Erin Knott Drinks, holiday a day celebrateeveryday, holidayaday365, hotchocolate, microwave, nationalmicrowaveovenday Eek! I’m a little behind, but yesterday was National Microwave Oven Day! To celebrate, I made myself some hot chocolate in the microwave in my favorite mug!