Toffee
["1 3/4 c. granulated sugar", "1 c. whipping cream", "1 c. finely chopped pecan meats", "1/2 c. butter", "1/2 tsp. cream of tartar", "2 tsp. vanilla", "2 milk chocolate bars (optional)"]
["Boil sugar, whipping cream and cream of tartar, stirring constantly until thick syrup.", "Add butter and cook until mixture leaves sides of pan (candy thermometer 295\u00b0).", "Remove from fire; stir in nuts and vanilla.", "Pour onto greased cookie sheet and spread thinly.", "Place milk chocolate on top of hot candy; allow it to melt, then spread evenly over candy.", "Allow to cool, then break into pieces."]
["sugar", "whipping cream", "pecan meats", "butter", "cream of tartar", "vanilla", "milk chocolate"]