4 cups all-purpose flour
2 cups white sugar
1/2 cup water
1 teaspoon baking soda
1 (3 ounce) package instant oatmeal
Preheat oven to 350 degrees F (175 degrees C). Grease cookie sheets.
In a large bowl, combine flour, sugar, water and baking soda. Mix well and spread on several cookie sheets.
Bake 24 to 25 minutes in the preheated oven, or until firm. Allow cookies to cool on baking sheet for 5 minutes before removing to a wire rack to cool completely.
In a large bowl, combine oatmeal, margarine, pecans and marshmallows. In a small bowl, mix together the oats mixture and marshmallows. Spread over the cookies. Arrange crackers on the top of an ungreased cookie sheet.