Start by rinsing the large head of broccoli under cold water. Pat it dry and place it on a cutting board. Using a sharp knife, chop the broccoli into bite-sized florets, ensuring that they are roughly the same size for even cooking.
In a microwave-safe bowl, measure out 3 tablespoons of water. This will create the steam needed to cook the broccoli perfectly.
Carefully place the chopped broccoli florets into the bowl with the water. Make sure they are evenly distributed and not overcrowded for the best results.
Cover the bowl with a microwave-safe lid or a plate. This will help trap the steam and cook the broccoli evenly.
Place the bowl in the microwave and cook on high for about 3 to 4 minutes. Cooking time may vary depending on your microwave's wattage, so check for doneness at the 3-minute mark.
After 3 minutes, carefully remove the bowl from the microwave. Be cautious of the hot steam when uncovering. Use a fork to pierce the broccoli; it should be tender but still slightly crisp.
If desired, add 1 tablespoon of salted butter to the hot broccoli and let it melt. Season with salt and pepper to taste. Toss the broccoli gently to coat evenly with the butter and seasonings.
Transfer the Microwave Broccoli to a serving dish and enjoy it warm as a nutritious side to your meal.