1 c. butter, melted
1 1/2 c. brown sugar, packed
2 1/4 c. rolled oats
1/2 tsp. salt
3 tbsp. flour
1 egg, slightly beaten
1 tsp. vanilla

Add sugar to butter, pour over rolled oats. Let stand at room temperature overnight so oats absorb butter. Heat oven to 375 degrees. Mix remaining ingredients into oats. Drop level teaspoonfuls of dough 2 inches apart on heavily greased baking sheet. Bake 5-7 minutes or until brown around the edges. Allow to remaining on sheet a few minutes until firm then immediately remove to a cooling rack.