Butter Crunch Toffee
["1 c. butter", "2 Tbsp. water", "1 or 2 Tbsp. finely chopped nuts (optional)", "2 sq. semi-sweet chocolate", "1 c. sugar", "2 Tbsp. corn syrup"]
["Melt butter over low heat in a large heavy saucepan.", "Remove from heat and add sugar.", "Stir until blended. Return to low heat. Stir rapidly until mixed and bubbly. Remove from heat.", "Add water and syrup.", "Cook with thermometer over low heat, stirring frequently, about 20 minutes or until temperature reaches 290\u00b0. Remove at once.", "Add nuts.", "Pour on lightly greased cookie sheet. Cool.", "Melt chocolate and pour over.", "Smooth with knife.", "Break into pieces when chocolate is firm."]
["butter", "water", "nuts", "semi-sweet chocolate", "sugar", "corn syrup"]