Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make sprinkle encrusted chocolate [title] Set up the double boiler for use. [step] Put out the silicone chocolate molds in readiness for adding the sprinkles and melted chocolate. Arrange them on a cookie sheet or similar, for ease of keeping together.

Ending1: [title] Cool the mixture in the refrigerator overnight. [step] Once cold, the sprinkles will thicken and melt. Ending2: [title] Add extra butter and syrup to the saucepan with the melted chocolate mixture. [step] Make sure that it reaches the temperature specified in this recipe, depending on whether it has already been set. Ending3: [title] Set a timer for about 10 minutes, until chocolate heats. [step] For a simpler approach, set it to an hour. Ending4: [title] Melt the chocolate in the double boiler. [step] Heat gently until it is soft, with no chunks, and take care not to burn it.

Answer format: ending1/ending2/ending3/ending4