Best-Ever Peanut Brittle

2 cups sugar
1 cup light-colored corn syrup
1 cup water
1 1/2 cups raw Spanish peanuts or raw peanuts
1 teaspoon baking soda
1/2 teaspoon salt
1. Butter two large baking sheets; set the baking sheets aside.
2. Butter the sides of a heavy 3-quart saucepan. Add sugar, corn syrup and water; stir to combine. Cook and stir over medium-high heat till the mixture boils. Clip a candy thermometer to side of the pan. Add the peanuts; cook over medium-low heat, stirring occasionally, till thermometer registers 280° to 285° (soft-crack stage; about 45 minutes).
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