Preheat oven to 350 degrees F. Grease or spray cookie sheets.
Put the dry ingredients (flour, salt, baking soda, and oatmeal) in a medium bowl. Mix together well.
NOTE: I mix the ingredients in this recipe by hand, using the large meat fork from my cutlery set. After years of it taking up space in my drawer, it gets used several times a week now. This photo shows the meat fork next to a regular dinner fork. If you've got one, use it!
Put the rest of the ingredients (Crisco, brown sugar, white sugar, egg, water, and vanilla) in a larger bowl. Mix together well.
Add the dry ingredients to the sugar mixture and mix until well-combined.
Add any optional ingredients you like. In my family, some like plain oatmeal cookies and others like raisins, so I make the plain ones first, then stir in a few raisins to finish out the baking. (I've also been known to separate the cookie dough into separate bowls & add a little bit of different extras to each bowl.) Make them any way you like. Cookies should be fun! =^..^=
Drop with a teaspoon (or a small scoop) on the prepared cookie sheets. Bake at 350 degrees F for 7-10 minutes, depending on how soft or crunchy you like your oatmeal cookies.
Cool on cooling racks. Or eat them warm. You know you want to! Pass the milk, please. =^..^=