In a medium mixing bowl, mix together 1 cup old fashioned oats, 1 1/4 cup all purpose flour, 3/4 cup sugar, 1 teaspoon Baking Powder, 1 teaspoon baking soda, 1/2 teaspoon salt and 1 teaspoon ground cinnamon. Set aside.
In a large mixing bowl, beat 2 large eggs and add in 1 cup milk, 1/4 cup unsalted butter (melted), 2 tablespoons maple syrup and 1 teaspoon vanilla extract. Stir until well combined.
Stir in the dry mixture to the wet mixture 1 cup at a time until completely combined, making sure to not over mix.
Gently fold in 1 pint Fresh Blueberries.
Pour the casserole mixture into a lightly greased 9x13 glass baking dish.
Melt 1/4 cup unsalted butter and place in the refrigerator to cool for at least 5-7 minutes.
In a medium mixing bowl, combine 1/4 cup all purpose flour, 1/2 cup packed brown sugar, 1/4 cup old fashioned oats, 1 teaspoon vanilla extract, 1/4 teaspoon salt and the cooled melted butter until well combined.
Evenly distribute the topping across the top of the casserole.
Bake for 30-40 minutes, rotating your baking dish halfway through the baking time, if your oven does not bake evenly. It is done when the center can pass the toothpick test.
Notes
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As with any of our recipes, carb counts, calorie counts and nutritional information varies greatly. As a result, your nutritional content depends on which products you choose to use when cooking this dish. The auto-calculation is just an automated estimate and should NOT be used for specific dietary needs.
All ovens cook differently, so cooking times are always a basic guideline. Recipes should always be tested first in your own oven and time adjusted as needed.