Apple Crumble Pie

• 1 prepared pie shell
• 400 gr green apples
• 240 gr cookie crumbs
• 100 gr sugar
• 55 gr melted butter
• 34 gr butter (unsalted)
• 30 ml lemon juice
• 28 gr brown sugar
• 4 gr cornstarch
• 1 gr mace (ground)