Moist, fluffy muffins bursting with fresh apple chunks and warm cinnamon. Perfect for breakfast, snacks, or brunch gatherings.

Preheat oven to 400°F (200°C). Line a 12-cup muffin tin with paper liners or grease with butter.
In a large bowl, whisk together flour, sugar, baking powder, cinnamon, and salt.
In another bowl, whisk together milk, oil, egg, and vanilla until smooth.
Pour wet ingredients into dry ingredients and gently fold until just combined. Don't overmix.
Fold in diced apple pieces gently.
Divide batter evenly among muffin cups. Bake 18-20 minutes until golden and a toothpick comes out clean.
Cool in pan 5 minutes, then transfer to wire rack. Serve warm or at room temperature.
Don't overmix the batter - lumps are okay! This keeps muffins tender. Dice apples small so they distribute evenly.
Add 1/2 cup chopped walnuts or pecans. Try a streusel topping made with butter, flour, and brown sugar.
Store in airtight container for 3 days at room temperature or freeze for up to 3 months.