Preheat oven to 350º
grease a 9x13 pan and set aside
Toss filling ingredients together in a large bowl
pour the filling into the prepared pan
Combine flour and sugars in a medium mixing bowl
Add butter and egg, and stir together until crumbly
Sprinkle this crumb topping over the peach mixture
Bake in the center of the oven for 40-45 minutes, until the crumble topping is golden brown on the edges, adjust the cooking time if it needs more time to brown up
cool on a wire rack
serve it hot, warm, or cold, serve with ice cream, heavy cream, whipped cream