- cooking spray
- 2 3/4 cups old-fashioned oats
- 3 1/3 cups milk
- 4 eggs
- 1 cup brown sugar
- 1 tablespoon vegetable oil
- 1 teaspoon vanilla extract
- 1/2 teaspoon ground cinnamon
- 1/2 teaspoon salt
- Preheat oven to 350 degrees F (175 degrees C). Prepare an 8-inch square baking dish with cooking spray.
- Spread oats into the prepared baking dish.
- Beat milk, eggs, brown sugar, vegetable oil, vanilla extract, cinnamon, and salt together in a large bowl until smooth; pour over oats.
- Bake in preheated oven until oats are softened and mixture thickened, 50 to 55 minutes.