Mix butter, sugar, and eggs together until creamy. Mix flour, baking powder, and salt together in a separate bowl. Combine the two and mix. Add ingredients such as chips or dried fruit (see suggestions below).
Suggestion #1. Use white sugar instead of brown sugar. Add 1 tsp. orange extract and 2/3 cup craisins. After baked and cooled, top with melted white chocolate.
Suggestion #2. Add 1 tsp. almond extract and 2/3 c. toffee bits
Suggestion #3. Add 3T baking cocoa (reduce flour by 3T), 2/3 c. chocolate chips, chopped walnuts.
Suggestion #4. Add 2/3 cup chocolate chips
Suggestion #5. Use white sugar instead of brown sugar, add 1 tsp. lemon extract and 2T poppy seeds
Suggestion #6. Add 3T baking cocoa (reduce flour by 3T), add chopped up Andes mints.
Form into two logs and bake at 325 degrees for about 20 minutes. When removed, set oven to 200. Cool. Cut log diagonally into biscotti strips and return to oven for 60 minutes longer.