Hard Boiled Eggs in Microwave

Fill a deep, microwave-safe bowl with enough water to fully submerge the eggs. Heat the water (without the eggs) in 1-minute increments in the microwave, stirring in between, until the water is very hot, about 3 minutes total.
While your water is heating, I recommend you carefully pierce the wide end of the egg deeply with a pin/needle/tack. This step is optional but it greatly reduces the risk of explosion in your microwave.
Once the water in the microwave is hot, mix in the salt (add 1/2 teaspoon of salt per egg, so if you are cooking more eggs, add more salt) and just a pinch of baking soda to help them peel more easily. Stir to dissolve the salt and baking soda.
Use a slotted spoon to gently place the eggs into the bowl. Microwave for 4 minutes (or 3 minutes for soft-boiled). The exact time may vary depending on the power of your microwave. Then, let the eggs stand in the water for 3 minutes.
In the meantime, fill a bowl with ice and cold water, then add the eggs, letting them stand for 2 minutes.
Peel and enjoy!