Ingredients
Equipment
Method
- Preheat oven to 375°F (190°C). Generously grease a 9x13-inch baking dish with butter or non-stick spray.
- In a large bowl, whisk together the flour, sugar, baking powder, baking soda, salt, and cinnamon.
- In a separate bowl, whisk the buttermilk, eggs, melted butter, and vanilla extract until well combined.
- Pour the wet ingredients into the dry ingredients and gently fold together until just combined. Do not overmix; lumps are okay.
- Gently fold 1 1/2 cups of the blueberries into the batter.
- Pour the batter into the prepared baking dish and spread evenly. Sprinkle the remaining 1/2 cup of blueberries on top.
- Bake for 35-45 minutes, or until the edges are golden brown and a toothpick inserted into the center comes out clean.
- Let cool for 5-10 minutes before slicing. Dust with powdered sugar and serve warm with maple syrup.
Notes
To make ahead, prepare the casserole, cover tightly, and refrigerate overnight. Bake the next morning, adding 5-10 extra minutes to the bake time.