Chocolate Chip Zucchini Cake

Preparation

1. Step 1

   Preheat oven to 350°F. Butter bundt pan well and dust with some flour, knocking out excess.

   Step 2

   Sift together 2 1/2 cups flour, baking soda, baking powder, and salt into a bowl. Beat together butter and brown sugar in a large bowl with an electric mixer at high speed until pale and fluffy, about 3 minutes, then beat in vanilla. Reduce speed to medium and add eggs 1 at a time, beating well after each addition and scraping down side of bowl occasionally, then beat until very smooth and fluffy, about 2 minutes more.

   Step 3

   Reduce speed to low and add all but 1/2 cup flour mixture, mixing until just combined.

   Step 4

   Toss zucchini, chocolate chips, and walnuts with remaining 1/2 cup flour mixture and add to batter, then mix batter with a rubber spatula (batter will be thick).

   Step 5

   Spoon batter into bundt pan, smoothing top. Bake in middle of oven, rotating pan halfway through baking, until side begins to pull away from pan and a tester comes out clean, 45 to 50 minutes total.

   Step 6

   Cool cake in pan on a rack 30 minutes, then run a thin knife around outer and inner edges. Invert rack over pan, then invert cake onto rack. Cool completely.