Chocolate Zucchini Cake

3 cups all-purpose flour
1 1/2 teaspoons baking powder
1 teaspoon baking soda
1 teaspoon salt
4 large eggs
3 cups granulated sugar
3 (1-ounce) unsweetened chocolate baking squares, melted
1 1/2 cups vegetable oil
3 cups grated zucchini (about 5)
1 cup walnuts or pecans, chopped
Powdered sugar

Combine the first four ingredients.

Beat the eggs at medium speed with an electric mixer. Gradually add granulated sugar; beat until blended. Add chocolate and oil; beat until blended. Gradually add flour mixture; beat at low speed until blended. Fold in zucchini and pecans. Pour batter into a well-greased and floured Bundt pan.
Bake at 350° for 1 hour and 15 minutes or until a wooden pick inserted in center comes out clean. Cool in pan 15 minutes. Remove from pan; cool completely on a wire rack. Sprinkle with powdered sugar before serving.