Please choose the correct ending to complete the given sentence: Food and Entertaining: [header] How to make marshmallow cereal bars [title] Melt a bag of marshmallows in a bowl in the microwave for 30 seconds. [step] Mini marshmallows work best as they melt faster, but any kind is good. [title] Mix.

Ending1: [step] Stir the hot marshmallows into the soft marshmallows and microwave for 10 seconds or so. [title] Stir in the nuts (the long-grain sort). Ending2: [step] Keep cooking in the microwave for 10 seconds and mixing until the marshmallows form a smooth, pasty goo. [title] In the same bowl, pour in 1 cup of cereal. Ending3: [step] Mix the melted contents of the mixing cup and the melted marshmallows into the cups. [title] Set the fresh marshmallow atop a clean clean surface and coat it with the melted marshmallows. Ending4: [step] Mix the 2 cups (240 milliliters) of melted marshmallow. [title] Place two-inch chunks in a large resealable bag and smash them with a couple of knives.

Answer format: ending1/ending2/ending3/ending4