Preheat the oven to 350F. Prepare the apples: peel, core and thinly slice each apple. Toss together with the lemon juice and place in a 10” pie plate; the apples will tower over the rim. Place the dish on a foil lined tray.

Make the crumb topping: combine the remaining ingredients in a mixing bowl. Use your hands to mix the ingredients together until marble size chunks form. Scatter the crumbs over the apples, pressing down so they don’t fall off. 

Bake the crumble for 60-70 minutes, checking after the 1 hour mark. When it’s done, the apples will have shrunk considerably and may have bubbled over. The topping will be dark brown and the apples will be almost jammy in texture. Serve warm.