1) Preheat the oven to 375°F.
2) Beat together the butter, salt, baking soda, brown sugar, and vanilla.
3) Beat in the eggs, then the flour.
4) Add the oats, nuts, and butterscotch chips, and mix well.
5) Drop the dough by tablespoonfuls onto an ungreased cookie sheet, and bake for 10 to 12 minutes, until the cookies are a very light golden brown around the edges.
6) Remove them from the oven, and cool on a rack.
Yield: about 4 1/2 dozen cookies.