To make lemon curd in the microwave
Put 1/2 cup butter in a microwaveable bowl and cook in the microwave until melted. Zest four lemons using a zester, and add the zest to the butter. Squeeze the lemons with a juicer, and add the lemon juice to the bowl. In a separate bowl, use a balloon whisk to whisk three eggs together. Add the eggs and one cup sugar to the lemon mixture. Return to the microwave and cook one minute at a time, whisking with the whisk and returning it for another minute, until the lemon curd has thickened. Transfer to a lidded jar and keep refrigerated.