Grandma Kirby'S Peanut Brittle
["2 to 4 c. raw peanuts", "2 c. sugar", "1 c. white syrup", "1/2 c. warm water", "1 Tbsp. soda", "1 tsp. vanilla", "1 Tbsp. butter"]
["Cook sugar, syrup and water to soft ball stage (294\u00b0) on candy thermometer.", "Add peanuts; cook to amber color.", "Add soda; stir. Add vanilla and butter.", "Pour onto greased marble slab.", "Cool and break.", "Store in airtight container."]
["peanuts", "sugar", "white syrup", "warm water", "soda", "vanilla", "butter"]