Pour white chocolate melts into a bowl and microwave 30 seconds.

Stir, and microwave another 30 seconds

Repeat until it's smooth and creamy with no chunks. Keep in mind the longer you stir, you are slowing melting some of the chocolate in the heat of the melted chocolate. So stir for a good 30 seconds before putting back in the microwave. This process usually took a minute for these melts, though sometimes a minute and a half. But like the strawberry flavored melts took a little longer than the others.

Dump melted chocolate somewhere. I used a 9 x 9 baking pan, totally forgetting to grease it at all, and it worked fine though a little dangerous with the removal. In retrospect, I would have first, at the very least, greased that pan with a little bit of vegetable shortening. BUT I think I'd be most inclined to dump it on parchment paper all flat like (no real need for a baking pan unless you want super thick edges which are harder to cut or break). But even if you wanted a baking pan to help with the edges, you could grease the pan AND lay some parchment paper on the bottom.

Chill in the fridge until the chocolate hardens (maybe 2 hours, but leaving it over night is pretty sure fire).

Once hardened, break up the chocolate into pieces / chunks. If you want the chunked look I got, I waited until it was completely hard, and because I'm the dolt who forgot to grease the pan, it came out much like trying to scrape a sheet of ice from a leak in the freezer. You just start cutting into a piece not far from the edge and it will eventually pop a chunk. Then continue. But that was a lot of work. And somewhat dangerous. Albeit therapeutic. But I can't help but to think if you did that on parchment paper, somewhat thinner pieces of chocolate, that it wouldn't just break with your hands. But another option might be is if you get it early on, before the chocolate fully hardens but hardens enough, you might be able to cut into it rather easily to get a more controlled shape. And if you do grease the pan and can get the chocolate sheet to remove entirely, you could potentially THEN (after removal from the pan, not before) smash it with a hammer, but that could be cartoon logic.