01 -
Preheat the oven to 375°F (190°C).
02 -
To a large bowl, add milk, yogurt, eggs, melted butter, maple syrup, vanilla, cinnamon, salt, and baking powder. Whisk until well combined.
03 -
Peel the peaches, cut 3 peaches into cubes, and 1 peach into slices.
04 -
Add the peach cubes and oats to the bowl. Stir until everything is evenly mixed.
05 -
Grease a 9-inch (23cm) pie dish (or a similar baking dish) with butter. Pour the oatmeal mixture into the dish, spreading it out evenly. Arrange the peach slices on top.
06 -
Bake for 45 minutes or until the center is set and firm.
07 -
Let set for 5-10 minutes before serving.