Berry, Plum and Apple Crumble

Ingredients

• 1 Granny Smith apple, peeled, cored and cut lengthwise
• 2 tbsp freshly squeezed lemon juice
• 1 tbsp sugar
• ¼ tsp ground cinnamon
• 125 g blueberries
• 125 g strawberries, roughly chopped
• 4 plums, stone removed, roughly chopped
• 1 cup oats
• 1 cup brown sugar
• ½ cup plain flour
• ½ tsp freshly grated ginger
• Pinch of salt
• 150 g unsalted butter, cut into small cubes
• Cream, to serve