Preheat oven to 400ºF

Line muffin pan with paper liners

In large bowl whisk together flour, baking powder, cinnamon and salt.

In medium bowl , using a whisk combine together butter, sugar, milk, egg and vanilla.

Gently stir blueberries into butter mixture.

Using a spatula fold butter mixture into flour mixture.

Don’t over mix, just until combined!

Divide batter equally into muffin tin.

Bake until tops are golden brown 15-17 minutes.

Let cool in pan 15 minutes before transferring to wire rack.