Step 1

Lightly spray the inside of a slow cooker with cooking spray.

Step 2

Mix flour, oats, butter, brown sugar, white sugar, and cinnamon together in a large bowl.

Step 3

Layer peaches in the bottom of the prepared slow cooker. Sprinkle the flour mixture over the peaches.

Step 4

Cover and cook on Low until peaches are bubbly, 4 to 6 hours.