Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make lemon sauce [title] Combine all ingredients in a transparent microwave-safe bowl. [step] Preferably it'll have a matching lid if you mean to save any for later. If it doesn't, you'll need to cover the top with a paper towel to keep the liquid from getting all over the place.

Ending1: [title] Microwave the water, juice and lemons in another, smaller microwave-safe bowl. [step] Do not store the recipe in a plastic pan. Ending2: [title] Stir until the cornstarch is evenly dispersed, forming a cloudy mixture. [step] The sugar and butter will not dissolve immediately. Ending3: [title] Microwave for 30 seconds to 1 minute. [step] The mixer will be spinning easily so it's best to keep your hands clean and loose. Ending4: [title] Microwave the mixture for 30 to 60 seconds. [step] Dump it back into the microwave after 30 seconds.

Answer format: ending1/ending2/ending3/ending4