Ultimate Double Chocolate Brownies
["3/4 c. baking cocoa", "1/2 tsp. baking soda", "2/3 c. butter, melted and divided", "1/2 c. boiling water", "2 c. sugar", "2 eggs", "1 1/3 c. flour", "1 tsp. vanilla extract", "1/4 tsp. salt", "1/2 c. coarsely chopped pecans", "2 c. (12 oz.) semi-sweet chocolate chunks"]
["In a large bowl, combine cocoa and baking soda.", "Blend in 1/3 cup melted butter.", "Add boiling water; stir just until well blended.", "Stir in sugar, eggs and remaining butter.", "Add flour, vanilla and salt.", "Stir in the pecans and chocolate chunks.", "Pour into a greased 13 x 9 x 2-inch baking pan.", "Bake at 350\u00b0 for 35 to 40 minutes or until brownies begin to pull away from sides of pan. Yields 3 dozen."]
["baking cocoa", "baking soda", "butter", "boiling water", "sugar", "eggs", "flour", "vanilla extract", "salt", "pecans", "semi-sweet chocolate chunks"]