Crack an egg into a large pour-able mug or measuring cup. Whisk it for a minute, until lightly foamy.
Add nutella and whisk until smooth.
Drizzle in vanilla extract and stir to combine.
Add almond meal and pinch of salt. Stir to resemble a thick smooth batter.
Evenly distribute batter into one extra large microwave safe mug (or two medium mugs), by layering a few peanut butter or chocolate chips in between.
Fill mug half full. Do not fill it more than half to avoid overflow.
Microwave for 30 seconds. And if batter doesn’t overflow, add another 30 seconds. The whole microwaving process should be for a total of 1 minute. Be watchful during this process.