Prepare the Oven: Preheat the oven to 350°F and line a 12-hole muffin pan with parchment paper liners or grease the pan with oil.
Prevent Sticking: For easier muffin release, use silicone liners or disposable liners with a natural food-grade silicone coating; if using traditional paper liners without a coating, lightly spray them with cooking spray before filling.
Combine the Wet Ingredients: Add the grated carrots, drained crushed pineapple, eggs, avocado oil, maple syrup or honey, and vanilla extract to a large bowl, then mix until the ingredients are well combined.
Mix the Dry Ingredients: In a separate medium bowl, whisk together the white whole wheat flour, baking powder, baking soda, salt, cinnamon, ground ginger, and nutmeg until evenly combined.
Make the Batter: Add the dry mixture to the bowl of wet ingredients and mix only until everything is just combined, taking care not to overmix the batter.
Fill the Muffin Pan: Portion the prepared batter evenly into the lined or greased muffin pan.
Bake the Muffins: Bake at 350°F for 20 to 22 minutes, or until the muffins are golden brown and a toothpick inserted into the center of one muffin comes out clean.
Check the Internal Temperature: If using a kitchen thermometer, check the center of the muffins and bake until they reach 200°F internally to help ensure they are cooked through without becoming overcooked.
Cool Before Serving: Let the muffins cool for at least 10 minutes before enjoying.
Store the Muffins: Once completely cooled, place the muffins in an airtight container and refrigerate for 4 to 5 days or freeze for up to 1 month.