Combine and beat until creamy:

1/2 c. soft butter
6 tbsp. granulated sugar
6 tbsp. brown sugar
1/2 tsp. vanilla

Beat in 1 egg. Sift together and stir in:

1 c. + 2 tbsp. sifted flour
1/2 tsp. baking soda
1/2 tsp. salt

Spoon by rounded tablespoonfuls into paper lined 2 1/2" cupcake cups. Bake at 375 degrees for 10 to 12 minutes. Remove from oven.

TOPPING:

Combine in bowl:

1/2 c. firmly packed brown sugar
1 egg
1/8 tsp. salt

Beat until very thick. Stir in:

1 (6 oz.) pkg. (1 c.) semi sweet chocolate morsels
1/2 c. chopped walnuts
1/2 tsp. vanilla

Spoon 1 tablespoonful over each cupcake. Bake at 375 degrees for 15 minutes. Yield: 16.