In a large bowl, sift the flour. Add the baking soda, baking powder, salt, ground cinnamon, and sugar. Set aside.
2 ¼ cups All-purpose flour, ¾ tablespoon Baking powder, ½ teaspoon Baking soda, ½ teaspoon Salt, ¼ teaspoon Ground cinnamon, 1 cup White granulated sugar, ¾ cup Mini chocolate chips
In a separate bowl, mix melted butter, eggs, sour cream, buttermilk, and vanilla. In a small bowl, mix the blueberries and ½ Tablespoon of flour.
½ cup Unsalted butter, 2 Large eggs, ¼ cup Sour cream, 1 cup Buttermilk, 2 teaspoon Pure vanilla extract, 1 cup Wild blueberries, ½ tablespoon All-purpose flour
Pour the wet ingredients into the dry. Use a rubber spatula to fold the batter. Fold it ¾ths of the way, then add in the blueberries. Mix until just combined. It is very important to not over mix the batter.
Cover the batter with plastic wrap. Let it sit for 45 minutes. Preheat the oven to 425°F. Line a 12 cup muffin tin with 6 liners. Separate out the liners between the 12 holes. You get a better rise to your muffins tin way.
Use a 3 Tablespoon cookie scoop to scoop the batter into the 6 liners. Top with extra chocolate chips, wild blueberries, and a sprinkle of coarse sugar.
Coarse sugar
Bake for 5 minutes. Lower the oven to 375°F. Bake for another 10-12 minutes until a toothpick inserted comes out clean.
Let the muffins sit for 10 minutes before transferring to a cooling rack.