Preheat oven to 350°F. Grease three 8-inch cake pans and line with parchment paper rounds. Spray parchment paper with nonstick cooking spray. Set aside. (The cake is very moist so using parchment in the bottom of the cake pans will ensure they don't stick. I prefer to use the non-stick baking spray that has the flour in it for easy cake removal.)
Whisk together dry ingredients in a large bowl.
2½ cups all-purpose flour, 1 teaspoon baking soda, 1 ½ teaspoons baking powder, 1 teaspoon fine sea salt, 1 teaspoon ground cinnamon, ¾ teaspoon ground nutmeg, ¼ teaspoon ground cloves
Combine applesauce, vegetable oil, both sugars and eggs in a medium bowl and whisk to combine. Add in the mashed banana, crushed pineapple and vanilla extract and whisk until thoroughly combined.
½ cup unsweetened applesauce, ½ cup vegetable oil, 1½ cups granulated sugar, ½ cup light brown sugar, 3 large eggs, 1¼ cup mashed banana, 8 ounces crushed pineapple, 1½ teaspoons vanilla extract
Add wet ingredients to dry ingredients and whisk until combined. Fold in toasted pecans.
1¼ cup pecans
Evenly divide the batter amongst the prepared cake pans.
Bake for 25 to 30 minutes for until an inserted toothpick comes out clean, rotating the pans halfway through.
Remove from the oven and let cool completely on a wire rack. Once cooled, remove cakes from pans and level off the tops if needed (mine always bake up really flat so you likely won't need to do this.)