Hi Jane,

Here is a recipe with the ingredients you described - I hope it's the one!

Good Good Cookies
Source: Cookbook USA

1 cup white sugar
1 cup white Karo
1 (12 oz.) jar crunchy peanut butter
1 tsp. vanilla
1/2 cup nuts
4 cups Special K cereal
1 cup Angel Flake coconut

Bring sugar and Karo to a boiling point, have ready and stir in peanut butter and vanilla. Pour over cereal, coconut and nuts; mix using wood spoon it's real hot. When cool enough to handle drop on wax paper by teaspoon and let cool.