Preheat the oven to 325 degrees F., rack in the middle position.
Mix the watermelon Kool-Aid with the granulated sugar.
Add the softened butter and mix until it's nice and fluffy.
Add the eggs and mix well.
Mix in the salt and the baking soda. Make sure they're well incorporated.
Add the flour in half-cup increments, mixing after each addition.
Use a silicone baking mat or spray cookie sheets with Pam or another non-stick cooking spray. You can also use parchment paper if you prefer.
Roll dough balls one inch in diameter with your hands. (We use a 2-teaspoon cookie scooper at The Cookie Jar.)
Roll the cookie balls in the bowl of white sugar and crushed candy.
place them on the cookie sheet, 12 to a standard-size sheet. [Molly says the cookies spread too much, only bake 8 cookies at a time]
Bake the Watermelon Cookies at 325 degrees F. for 10 to 12 minutes (mine took 11 minutes) or until they're just beginning to turn golden around the edges. Don't overbake.
Let the cookies cool on the cookie sheets for no more than a minute, and then remove them to a wire rack to cool completely.
Yield: Approximately 6 dozen pretty and unusual cookies that kids will adore, especially if you tell them that they're made with Kool-Aid.