Preheat oven to 350ø. Line 2 regular-size muffin trays
with baking cups. In a large bowl, mix flour, baking powder, soda,
salt, and cinnamon; set aside. In another large bowl, beat together
eggs, sugar, vanilla, and oil. Add zucchini, and mix well. Add
flour mixture, and blend. Stir in pineapple and walnuts. Pour
batter in equal parts into muffin cups. Bake about 20 minutes,
or until toothpick inserted into center of muffin comes out clean.
Source: Seventeen Magazine, October 1993