Please choose the correct ending to complete the given sentence: Home and Garden: [header] How to make edible sand [title] Blend the chocolate and whole graham crackers in a food processor. [step] Blend on high speed for about a minute or two, until the graham crackers resemble the consistency of sand. [substeps] You can also crumble the crackers by placing them in a ziploc bag and whacking it with a rolling pin.

Ending1: [title] Mix in powdered sugar, salt, and baking soda. [step] If desired, you can use powdered sugar and baking soda to make this sticky sand. Ending2: This process takes a little more effort but it works just as well. [title] Pour the crumbled graham crackers into a large bowl. Ending3: You can also freeze them in a food processor, which will make them much easier to remove later on. Once the graham crackers are crushed, pour the mixture into a glass and add 1 cup of boiling water to the crackers. Ending4: The mixture should be fairly solid and creamy, yet not seem grainy. However, keep in mind that a mishaps in consistency will make the crackers tongue-in-sand.

Answer format: ending1/ending2/ending3/ending4