Creating this delightful Blueberry Breakfast Bake is both simple and enjoyable. Here’s how to do it:

1. Preheat the Oven: Begin by preheating your oven to 350°F (175°C). Grease a 9×13-inch baking dish for a perfect bake.
2. Prepare the Blueberries: If using fresh blueberries, rinse and pat them dry. Set aside. If using frozen, there’s no need to thaw them.
3. Mix Wet Ingredients: In a large mixing bowl, whisk together the eggs, milk, and vanilla extract until light and frothy.
4. Combine Dry Ingredients: In another bowl, sift together the flour, sugar, baking powder, salt, and cinnamon (if using).
5. Merge Mixtures: Gradually add the dry ingredient mixture to the wet ingredients. Mix until just combined and smooth.
6. Stir in Butter: Gently fold in the melted butter, ensuring everything is blended well.
7. Add Blueberries: Carefully add the blueberries into the batter. Stir gently to prevent them from breaking.
8. Pour into Baking Dish: Transfer the mixture into the greased baking dish, spreading it evenly.
9. Bake: Place in the preheated oven and bake for 35-40 minutes or until the top is golden brown and a toothpick comes out clean.
10. Cool: Once done, remove from the oven and let it cool for about 10 minutes in the dish.
11. Dust (Optional): If desired, sprinkle powdered sugar on top for an elegant finish before serving.

Following these steps will guide you in preparing this delightful breakfast dish effortlessly!