First, position an oven rack in the middle of your oven and preheat it to 325°F. Generously grease and flour your two loaf pans to prevent the bread from sticking. Using a baking spray that contains flour is a great shortcut.
In a medium-sized bowl, gather your dry ingredients: the all-purpose flour, salt, baking soda, baking powder, ground cloves, cinnamon, and nutmeg. Whisk them together until they are well combined. This step ensures the spices and leavening agents are evenly distributed throughout the batter.
In a large bowl using an electric mixer, beat the softened butter and sugar together on medium speed until they are just blended. Next, add the eggs one at a time, making sure to beat well after each addition. Continue beating for a few minutes until the mixture becomes light and fluffy.
Beat the pumpkin puree into the butter and sugar mixture. Don't be concerned if the batter looks a little grainy or curdled at this stage; this is completely normal. Add the dry ingredient mixture to the wet ingredients and mix on low speed until everything is just combined, being careful not to overmix.
Divide the batter evenly between your two prepared loaf pans. Place them in the preheated oven and bake for 65 to 75 minutes. You'll know the bread is done when a cake tester or wooden skewer inserted into the center of a loaf comes out clean.
Let the loaves cool in their pans for about 10 minutes before turning them out onto a wire rack. This initial cooling period helps the bread set. Allow them to cool completely on the rack before slicing and serving.