Maple Nut Brittle

1 cup light brown sugar
1 teaspoon vanilla extract
1 cup maple sugar
1/4 teaspoon salt
1/2 cup water
1 cup broken nut meats
2 tablespoons butter

Boil the sugar and water to the stiff ball stage (246 degrees F). Add butter; cook to the brittle stage (290 to 300 degrees F). Add the vanilla and salt; pour over the nut meats which have been placed on a buttered pan. When cold, break into pieces.