Salted Peanut Crisps

1 cup butter
1 1/2 cups brown sugar
3 cups flour
1/2 t. salt
2 eggs
2 t. vanilla
1/2 t. soda
2 cups salted peanuts

Mix all ingredients together. Drop onto baking sheet by teaspoon and flatten with a lightly-floured glass. Bake at 375 degrees for 10 minutes.