1 large watermelon
If your watermelon doesn’t have a flat side that allows it to rest securely on the counter, slice a small portion of the rind off lengthwise to create a flat surface and stabilize it. Remove the cap from your vodka and use it to trace a hole on the top-center of your watermelon. Carefully cut around the circle with a sharp knife and remove the piece of watermelon rind. This is where the neck of the vodka bottle will fit while the fruit infuses. Save the piece of rind to use as a plug for later if you will be transporting the watermelon. Use a spoon to hollow out the area inside the hole so that there is room for the entire neck of the bottle of vodka. To test the fit, put the cap back on the bottle and turn it upside down, inserting the entire neck of the bottle into the watermelon. Make sure it can rest securely in this position. Take the bottle out of the watermelon and remove the cap. Right now the hole in the watermelon should be facing up towards you. Rotate the watermelon away from you about 90° so that the hole is facing straight out to the side. Carefully angle the open bottle of vodka and fully insert the neck of the bottle into the watermelon, moving quickly to minimize spilling. TIP: Do this at the edge of a table or counter so you can rotate the watermelon more than 90° so that it points downward. That way you can fit the neck of the bottle into the hole while the bottle is mostly upright. Carefully rotate the watermelon back to its original stabilized position so that the hole is pointing upward again. The bottle should now be completely inverted into the watermelon. Allow watermelon to infuse for 12-24 hours at room temperature. Once the vodka has infused into the watermelon, refrigerate until cold (if preferred), then cut into slices and enjoy responsibly!