Preheat oven to 425°F. Generously grease a muffin tin with cooking spray. Do not use liners. Melt coconut oil and let it cool to room temp. Set out the Greek yogurt and eggs to come to room temp. Peel and grate carrots on the large holes of a box grater. It’s important all the wet ingredients are at the same temperature so the batter mixes smoothly.
Add honey, eggs, vanilla, and Greek yogurt to a large bowl. Briskly whisk until smooth and fully combined. While whisking constantly, slowly stream in the coconut oil. See note 1.
Add cinnamon, ginger, nutmeg, salt, baking soda, and baking powder. Whisk until well combined.
Add flour and switch to a wooden spoon. Stir gently a couple times, then add grated carrots. Mix just until no dry streaks remain. Do not overmix.
Divide batter evenly among 12 muffin cups. Divide brown sugar evenly among the tops of the muffins if using.
Bake for 14–15 minutes, or until tops are golden and a toothpick comes out clean or with a few moist crumbs.
Let muffins cool in the tin for 5–10 minutes, then gently remove and transfer to a cooling rack to finish cooling.
Video
Notes
Note 1: If the batter clumps, microwave it in 10-second bursts until it smooths out and mixes easily.Storage: Store muffins covered at room temp for up to 2 days or in the fridge for up to 4 days. Freeze for up to 3 months.