Perfect Apple Crumble - Bake with Amy

Ingredients

• 6 apples (crisp apples, like Pink Lady - around 1kg)
• ⅓ cup white sugar (67gr)
• 1 tbsp plain flour
• ½ tsp ground cinnamon
• 2 tbsp lemon juice
• ⅓ cup water (79ml)
• 1 cup rolled oats (90gr)
• 1 cup plain flour (120gr)
• 1 cup soft brown sugar (160gr)
• ½ tsp baking powder
• 1 tsp ground cinnamon
• ½ cup melted butter (115gr) plus extra for greasing.