Microwave Butter Toffee

1 1/3 cup sugar
1 cup softened butter
2 tablespoons water
1 tablespoon dark corn syrup
1 teaspoon vanilla
3/4 cup semisweet chocolate chips
2/3 cups chopped walnuts

Directions:
In a large microwave safe bowl, mix sugar, butter, water and corn syrup. Microwave on high 4 minutes. Stirring every 2 minutes, heat 6-8 minutes longer until thickened and gold in color. Add vanilla; stir well. Pour mixture into 9x13 dish. Spread chocolate chips over hot toffee. Sprinkle with nuts. Cool completely. Break into pieces.