FOR THE BREAD
3 1/2 cups all-purpose flour
2 teaspoons baking soda
1 teaspoon salt
1 teaspoon ground cinnamon
1 teaspoon ground nutmeg
1/2 teaspoon ground ginger
1/2 teaspoon ground cloves
1/2 cup canola or vegetable oil
1/2 cup apple sauce
1 1/2 cups sugar
1/2 cup brown sugar, packed
4 eggs
1 15-ounce can pumpkin puree
2/3 cup water
FOR THE STREUSEL
1/2 cup brown sugar
1/2 cup all-purpose flour
1/2 cup pecans, walnuts, or any other nut, chopped
2 teaspoons ground cinnamon
1/4 cup unsalted butter, melted
To make the bread: Preheat oven to 350 degrees. Lightly spray 6 mini or 3 7×3-inch loaf pans with nonstick cooking spray with flour, or grease and flour each one; set aside. In a large bowl, combine the flour, baking soda, salt, cinnamon, nutmeg, ginger, and cloves; set aside. In a large bowl, or the bowl of a standing mixer, combine the oil and apple sauce. Stir in the sugars until combined, then add the eggs, one at a time, mixing well between each addition. Stir in the pumpkin until thoroughly combined. Stir in the water. Sprinkle about half of the flour mixture over the wet ingredients and mix until just combined. Add the remaining flour mixture, and mix just until no streaks of flour remain. Divide the batter evenly between the prepared pans and set aside while you mix the streusel topping.
To make the streusel: In a medium bowl, mix the sugar, flour, and cinnamon together, whisking until thoroughly combined. Stir in the nuts. Drizzle the melted butter over the mixture and stir with a spoon until you have a mixture that resembles lumpy wet sand. Do not break up the clumps too much. Divide the streusel evenly between the pans, sprinkling it over the top of the bread batter to cover it completely.
Bake mini loaves, three at a time on a rimmed baking sheet, for 20 minutes. Rotate the pans, front to back, and bake for another 20 to 22 minutes, until a toothpick inserted in the center comes out clean. If making large loaves, bake all 3 7×3-inch loaves on a rimmed baking sheet for 25 minutes. Rotate the pans, front to back, and bake for another 25 to 27 minutes, until a toothpick inserted in the center comes out clean. Allow to cool at least 10 minutes before serving, preferably longer, if you can.