Place your watermelon on a sturdy surface with its flattest side down.
Using the vodka cap, trace a circle large enough for the bottle neck to fit into, then use a sharp knife to cut the hole about an inch or 2 deep. Don’t cut it any wider than your trace marks.
Using a long knife or skewer, poke as many holes as you can in the hole you just cut. This is to make sure that the vodka seeps into the fruit.
Test if the vodka is seeping into the watermelon by filling a funnel with vodka and waiting until it empties into the watermelon. If the funnel doesn’t empty, you will need to poke more holes.
Once the funnel empties, uncap the vodka, and at a slight angle at first, slowly insert the bottle into the hole, making certain it will fit tightly. Then push the bottle down so that the neck is embedded enough to stay upright on its own. The vodka will slowly drain into the watermelon.
Refrigerate for at least 8 hours or up to 24 hours before serving. You can slice it, cube it, blend it or cut off the top and stick straws into it!
