Ingredients:
- 2 cups Old-Fashioned Oats (Rolled Oats)
- 1/4 cup Light Brown Sugar, packed
- 2 tsp Baking Powder
- 1 tsp Ground Cinnamon
- 1/2 tsp Fine Sea Salt
- 2 cups Milk (Whole or 2%)
- 2 Large Eggs, lightly whisked
- 1/4 cup Pure Maple Syrup
- 1/4 cup Unsalted Butter, melted and cooled
- 1 tsp Pure Vanilla Extract
- 1 Tbsp Lemon Zest (Zest of 1 medium lemon)
- 1 1/2 cups Fresh or Frozen Blueberries
Instructions:
- Preheat Oven: Set the oven to 375°F (190°C). Lightly grease the 9x9 inch baking dish with butter or cooking spray. Melt the required butter and set it aside to cool slightly.
- Combine Dry Ingredients: In the large mixing bowl, whisk together the oats, brown sugar, baking powder, cinnamon, and salt. Ensure the baking powder is evenly distributed.
- Combine Wet Ingredients: In a separate medium bowl, whisk the milk, lightly beaten eggs, maple syrup, vanilla extract, cooled melted butter, and lemon zest until uniform.
- Unite Mixtures: Pour the wet mixture over the dry ingredients in the large bowl. Stir gently with a rubber spatula just until the oats are fully moistened. Do not overmix.
- Fold in Blueberries: Gently fold in the blueberries, distributing them evenly throughout the mixture without crushing them.
- Transfer to Dish: Pour the oatmeal mixture into the prepared baking dish, leveling the top slightly with the spatula.
- Bake: Bake for 35 to 40 minutes. The oatmeal is done when the edges are golden brown, the center is set, and it is no longer jiggly.
- Rest: Remove the baked oatmeal from the oven and allow it to rest on a cooling rack for at least 10 minutes. This mandatory resting period allows the structure to set properly.
- Serve: Serve warm, perhaps with a dash of cream or extra maple syrup.