Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make a surprise goodie ice cream cake [title] Take out a big tin. [step] Decide which ice cream you want to be the bottom layer. Using the ice cream for your bottom layer, let the ice cream sit out for about 7mins whilst the others stay in the freezer.

Ending1: Make sure that the ice cream doesn't completely melt but is soft enough to spread. [title] Start using the ice cream for the bottom layer and spread it across the bottom until all the bottom layer ice cream is in the tin. Ending2: This makes the bottom layer nice and cold. [title] Fold the icing in half, so that it forms the heart shape of the ice cream. Ending3: [title] Finally, turn the oven on to the lowest rising temperature possible and melt the graham crackers. [step] Make sure you know it's hot in your oven, double check the temperature with your thermometer. Ending4: [title] Take large eight ice cream bags and place them in the freezer. [step] Cold the packs in the freezer for ten to twenty minutes.

Answer format: ending1/ending2/ending3/ending4