Preheat oven to 350 degrees. Line muffin tin with liners or lightly spray with nonstick spray.: You will notice the oven warming the kitchen, and a consistent oven temperature is crucial for even rise and browning. Preheating ensures the batter begins cooking immediately, creating lift from the outside in. If you skip preheating, muffins may bake unevenly and sink in the center. A common pitfall is not adjusting for a hot or cold oven, so use an oven thermometer if your range runs hot or cold, and make sure liners are placed so muffins release cleanly.
In a mixing bowl, sift together almond flour, whole wheat flour, coconut flour, salt, baking soda, and cinnamon. Set aside.: The dry mix should smell faintly nutty and spiced, with the cinnamon aroma lifting as you sift. Sifting helps distribute the baking soda and spices evenly, giving uniform rise. If you skip sifting, you might end up with pockets of leavening or clumps of coconut flour, which can create uneven texture. Watch out for overcompaction when measuring; fluff the flour first and spoon into the cup for accuracy.
In a separate bowl, combine oil, eggs, honey, molasses, vanilla, and applesauce. Mix well. Gradually add flour mixture to the egg mix. Gently stir just until combined. Fold in remaining ingredients. Scoop into prepared muffin tin.: As you whisk the wet mixture, it should become glossy and slightly airy, and you will smell the molasses and vanilla melding. Gradually incorporating the dry mix prevents lumps and overmixing, which preserves a tender crumb. When folding in the apple , carrot , raisins , walnuts , shredded coconut , and pineapple , aim for even distribution without aggressive stirring, or the muffins will become tough. A typical error is overmixing once the flours are added, resulting in a dense, chewy texture; stop as soon as you see streaks disappear. Use a gentle folding motion and pay attention to the batter consistency, it should be thick but spoonable.
Bake for 15 minutes, or until a toothpick inserted into the center comes out clean. Allow to cool almost completely before serving. Store in refrigerator.: During baking you will hear a gentle hush of heat as the tops set and the edges turn golden, and the aroma of cinnamon and molasses will deepen. The toothpick test ensures centers are baked through without drying out, and letting them cool slightly helps the crumb set so they do not crumble when removed. Cooling too briefly can cause the muffins to fall apart, while leaving them in the tin too long can trap steam and make bottoms soggy. After cooling, refrigerate to extend freshness; however, avoid sealing warm muffins as condensation can make them soggy.