Preheat your oven to 375°F. Grease 12 muffin cups OR line with paper muffin liners.
In a large bowl whisk together the flour, sugar, baking soda, baking powder, salt, and nutmeg.
In a large glass measuring cup, beat together the melted butter, honey, egg, buttermilk, and vanilla.
Pour the buttermilk mixture into the dry ingredients and stir just until mixed. This is a heavy, thick batter, do not overmix!
Scoop the batter into the prepared muffin tins; fill the muffin tins 3/4 of the way.
Bake for 11-14 minutes, first checking at the 10-minute mark. Use a toothpick or cake tester to check. Do not overbake as these dry out when overbaked.
Notes
These will dry out when overbaked, so watch them closely.