How to: Cobble Gen!

I may start making a series of this, but for now, we'll start off with this.

First of all, take a look at the contents in your chest. Here's what's in it.
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Take the Lava and ice and make something like this:
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Place the ice in the hole with 2 slots and break it so it becomes water.

Take the lava and put it in the hole with one slot.

break the grass block in the middle and you should be done!\

Here is the finished product:
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Feel free to make requests~