Zucchini Bread

3 c all-purpose flour
1 tbsp cinnamon
1 tsp salt
1 tsp baking soda
1/4 tsp baking powder
3 large eggs
2 c white sugar
1 c vegetable oil
1 tbsp vanilla extract
3 c grated zucchini
1 c chopped walnuts (optional)

1. Preheat oven to 350 degrees F (175 degrees C).

2. Sift together flour, cinnamon, salt, baking soda, and baking powder. Set aside.

3. Beat eggs in a large bowl. Add sugar, oil, and vanilla; mix well. Stir in zucchini, then mix in flour mixture until well combined. Stir in nuts. Pour into 2 ungreased loaf pans.

4. Bake in the preheated oven until a toothpick inserted into the centers of each loaf comes out clean, about 1 hour.