Preheat your oven to 350°F (175°C). Grease a mini muffin pan generously. Donuts that stick are just muffins with attitude.

Mix the dry ingredients in a bowl: flour, sugar, baking powder, cinnamon, and salt. Whisk like you mean it.

Whisk the wet ingredients in another bowl—milk, melted butter, egg, and vanilla. Smooth and glossy is the goal.

Combine wet and dry ingredients. Stir just until combined. Do not overmix unless you enjoy dense donut sadness.

Spoon or pipe the batter into the mini muffin pan, filling each cavity about ¾ full. No overfilling—these guys need room to rise.

Bake for 10–12 minutes, or until the tops spring back lightly when touched. Translation: they look done and smell amazing.

Let them cool slightly, then remove from the pan. Warm is perfect—hot is dangerous.

Brush with melted butter, then roll generously in cinnamon sugar. Be bold. This is not the time for restraint.