In a large, microwave-safe mug, add all ingredients. Whisk until smooth.
Cook in microwave at full power for about 2 minutes 20 seconds. Allow the bread to cool about 1 minute before removing from mug and slicing. I sliced mine into ½ inch thick discs.
The breads can be used as is for sandwiches or can be toasted. I prefer the texture when the bread is toasted.
