Blueberry Coffee Cake Muffins

Directions

1. 1
   Preheat the oven to 350 degrees.
2. 2
   Place muffin liners in muffin pans.Using a standing mixer with a paddle attachment or a hand mixer, cream the butter and sugar until light and fluffy.
3. 3
   Add eggs, one at a time, using a rubber spatula to scrape down the sides when needed.
4. 4
   Add the sour cream, milk and vanilla, mix just until incorporated.Meanwhile, whisk the dry ingredients in a separate bowl.
5. 5
   Add to the batter.
6. 6
   Mix just until combined.Use a rubber spatula to gently fold in the berries.If you're using frozen berries, toss them in 1 Tablespoon of flour first before adding to the batter, so they don't turn your muffin batter into a purple mess. Fill the muffin cups with batter; I use an ice cream scoop.
7. 7
   Bake for about 25 minutes, until golden and toothpick comes out clean when you test them.