Cinnamon Sugar Donut Muffins

1. Preheat and prep:
   Preheat your oven to 375°F (190°C). Grease a muffin pan or line with paper liners.

2. Mix dry ingredients:
   In a medium bowl, whisk together flour, baking powder, baking soda, salt, nutmeg, and cinnamon.

3. Mix wet ingredients:
   In a large bowl, whisk melted butter, granulated sugar, brown sugar, eggs, milk, and vanilla until smooth.

4. Combine:
   Gradually fold the dry ingredients into the wet mixture just until combined. Avoid overmixing to keep muffins tender.

5. Bake:
   Divide the batter evenly among the muffin cups, filling each about ¾ full. Bake 15–18 minutes, or until a toothpick inserted into the center comes out clean.

6. Cool slightly:
   Let muffins sit in the pan for 5 minutes, then transfer to a wire rack.

7. Coat in cinnamon sugar:
   Mix sugar and cinnamon in a small bowl. Brush each warm muffin with melted butter, then roll or dip in the cinnamon sugar until fully coated.

Conclusion:
Soft, spiced, and sweet with a lightly crisp cinnamon sugar exterior, these Cinnamon Sugar Donut Muffins are a nostalgic treat that disappears fast. Serve them warm for the ultimate cozy experience—seconds are guaranteed!