Step 1

Cut a thin slice from the bottom of the watermelon rind (but not into the flesh) so the watermelon will sit upright. With a sharp knife, carve out a circle in the top of the watermelon to make a lid, as you would when carving a jack-o'-lantern.

Step 2

To prepare with an immersion blender: Set the watermelon in the sink (to avoid splashes). Remove the lid and insert an immersion blender into the flesh. Gently push and move the immersion blender down and around in the watermelon to puree the center. As more of the watermelon becomes pureed, move the blender to the sides to puree almost all of the flesh, leaving a thin wall of flesh lining the rind. Pour the pureed juice out of the watermelon; you should have between 6 and 7 cups.

Step 3

To prepare with a drill: Fasten one beater from an electric hand mixer to the tip of a drill and tighten the chuck. Set the watermelon in the sink (to avoid splashes) and push the beater into the flesh. Gently push and move the beater down and around in the watermelon to puree the center. As more of the watermelon becomes pureed, move the beater to the sides to puree almost all of the flesh, leaving a thin wall of flesh lining the rind. Pour the pureed juice out of the watermelon, and strain, discarding any pulp and seeds; you should have between 6 and 7 cups of strained juice.

Step 4

Insert a tap in the empty watermelon according to the package directions. Pour the watermelon juice, wine and vodka into the watermelon and top with the lid. Refrigerate until the watermelon and punch inside are well chilled, at least 2 hours.