Sour Cream Fudge
["2 c. sugar", "pinch of salt", "1 (8 oz.) carton sour cream", "butter or margarine", "2 Tbsp. butter or margarine", "1/2 c. chopped pecans (optional)"]
["Combine sugar, salt and sour cream in a buttered heavy saucepan.", "Cook over medium heat, stirring constantly, until mixture reaches soft ball stage or candy thermometer registers 234\u00b0.", "Remove from heat; stir in 2 tablespoons butter.", "Beat at high speed with an electric mixer until mixture thickens and begins to lose its gloss (4 to 5 minutes).", "Stir in pecans, if desired.", "Pour into a buttered 8-inch square baking pan or dish; chill until firm.", "Store in an airtight container at room temperature."]
["sugar", "salt", "sour cream", "butter", "butter", "pecans"]