1-First Step: Gather and Mix IngredientsIn a large microwave-safe bowl, whisk together 1 cup sugar, 3 large eggs, 2 egg yolks, ½ cup lemon juice, and ⅛ teaspoon salt (if using unsalted butter) until the mixture is smooth and well combined. Add the 4 ounces of salted butter, cut into cubes, and give it one more stir to distribute everything evenly. This initial mixing ensures that your ingredients blend perfectly before heating, setting the foundation for a silky curd.

2-Second Step: Initial Microwave HeatingMicrowave the mixture on high power for 45 seconds, then carefully remove the bowl and whisk it vigorously to incorporate any heat and prevent lumps from forming. This step starts the cooking process, allowing the eggs to begin thickening without overcooking. Keep an eye on the bowl to avoid spills, as the mixture will start to warm up quickly in most microwaves.

3-Third Step: Continue Heating in IntervalsReturn the bowl to the microwave and heat in additional 45-second intervals, removing and whisking vigorously after each one, for a total of 4 to 7 minutes depending on your microwave’s power. The curd is ready when it coats the back of a metal spoon or reaches 175˚F on an instant thermometer, signaling that it’s thickened properly. This step-by-step approach helps adapt to different microwave strengths, making it easier for busy parents or students to get consistent results every time.

4-Fourth Step: Add Zest and CoolOnce the curd reaches the desired consistency, remove it from the microwave and whisk in the finely grated zest from 2 lemons, stirring until fully incorporated for that fresh citrus punch. Let the mixture cool to room temperature on the counter, where it will continue to thicken as it rests. For those watching their diet, this is a good time to note the low calorie content, with each tablespoon offering just 60 calories and a dose of vitamin C.

5-Final Step: Store and ServeAfter cooling, cover the curd and place it in the refrigerator to chill, where it will firm up perfectly for use in recipes or as a spread. This microwave lemon curd pairs wonderfully with items like our mini Earl Grey honey scones recipe, adding a zesty twist to your breakfast or snacks. With a total prep time of just 5 minutes and cooking time of 6 minutes, you’ll have a versatile treat ready in 11 minutes flat, ideal for food enthusiasts and party hosts alike.