Macadamia Brittle

2 (7 ounce) jars macadamia nuts
2 cups granulated sugar
1/2 cup light corn syrup
2 tablespoons butter
1/2 teaspoon baking soda

Butter a large baking sheet; set aside. Cut nuts in half; set aside. 

In a 10-inch nonstick skillet, combine sugar with 1/2 cup water and corn syrup. Cook over medium-high heat, stirring occasionally, until golden brown.

Stir in nuts; cook, stirring constantly, until medium brown (do not burn mixture). Remove from heat; quickly stir in butter and baking soda. Pour onto prepared baking sheet. Cool on pan on wire rack. Break into pieces.