Preheat oven to 350 degrees.
Slice peaches, and place in a small baking dish (I used an 8 x 6 inch).
To a bowl, add all of the remaining ingredients. Use your hands to mix until everything is well-combined and crumbly.
Cover peaches completely with crumble mixture.
Bake for 25-30 minutes, until the topping is golden brown.
Best served warm with ice cream - enjoy!