Peanut Brittle
["2 c. sugar", "1 c. white corn syrup", "1/2 c. water", "1/2 tsp. salt", "1 tsp. butter", "2 c. raw peanuts", "2 tsp. baking soda"]
["Using large kettle, boil first four ingredients until thread stage (238\u00b0).", "Add butter and peanuts.", "Stir; cook until golden brown (300\u00b0).", "Remove from heat and add baking soda.", "Mixture will bubble up.", "Mix well.", "Pour into a well-greased cookie sheet. When cool, break into pieces and store in an airtight container."]
["sugar", "white corn syrup", "water", "salt", "butter", "peanuts", "baking soda"]