Stir together flour, sugar, salt, and baking soda in a bowl.

Add brown sugar, eggs, and vanilla.

Mix well until combined.

Cut in shortening until the mixture resembles coarse crumbs.

Add rolled oats.

Work with fingers until dough just holds together.

Roll dough to desired thickness on a board or canvas sprinkled with confectioners sugar.

Cut into desired shapes using cookie cutters.

Bake on a lightly greased cookie sheet in a 350°F (175°C) oven for 8 to 10 minutes, or until golden brown.

Let cool on the baking sheet for a couple of minutes before transferring to a wire rack to cool completely.