Hands down these are my husband's favorite cookie, and I don't make them often enough according to him. P.S. The batter is good to eat right out of the fridge!
3 squares unsweetened chocolate
1 stick butter
1 1/2 cup sugar
1 tsp. vanilla
1 1/2 cups flour
1/2 cup peanuts
Melt butter and chocolate in saucepan over low heat. Remove from heat and add sugar, stirring until moistened. Add eggs, beat until smooth. Add 1 tsp. vanilla, beat again. Add flour and mix well, then add peanuts. Chill overnight. Bake at 350 degrees for 12 to 16 minutes. Cool on wire rack.