Let's begin by preheating the oven. Set it to 350 degrees Fahrenheit before you do anything else.
Next, take your loaf pans and grease the bottom of each one. With that done, set them aside and move forward to the next step.
Grab a bowl and mix together the butter, sugar, vanilla, and eggs. Once everything is well combined, set the mixture aside for later.
Take another bowl and mix together the flour, baking soda, salt, cinnamon, baking powder, nutmeg, and cloves. Make sure all the ingredients are well combined before moving on to the next step.
Using an electric mixer at medium speed, beat the butter, sugar, eggs, and vanilla mixture until it becomes smooth. Don't forget to scrape the bottom and sides of the bowl frequently to ensure everything is mixed well.
Then, add the dry mixture of flour, salt, and cinnamon from the other bowl into the wet mixture. Mix everything together by beating at a low speed until well combined.
Then, add the walnuts and zucchini to the mixture and stir them in.
Next, pour the bread batter mixture into your greased loaf pans, making sure to spread it evenly throughout the pan. This will help your bread bake evenly and rise properly in the oven.
Next, bake the mixture in the oven for 60 to 65 minutes. To check if it's done, insert a toothpick into the center of the pan, and if it comes out clean, you're good to go.
After you've finished baking, take the bread loaf pans out of the oven and let them cool on the counter for about 10 minutes.
Last but not least, take the zucchini bread out of the pan and let it cool completely before serving.
Finally, serve and enjoy your delicious Barefoot Contessa zucchini bread!