Cinnamon Hazelnut Biscotti
["3/4 c. butter", "1 c. sugar", "2 eggs", "1 1/2 tsp. vanilla extract", "2 1/2 c. all-purpose flour", "1 tsp. ground cinnamon", "3/4 tsp. baking powder", "1/2 tsp. salt", "1 c. hazelnuts"]
["Preheat oven to 350\u00b0.", "Grease a cookie sheet or line with parchment paper.", "In a medium bowl, cream together butter and sugar until light and fluffy.", "Beat in eggs and vanilla.", "Sift together flour, cinnamon, baking powder and salt; mix into the egg mixture."]
["butter", "sugar", "eggs", "vanilla extract", "flour", "ground cinnamon", "baking powder", "salt", "hazelnuts"]