Blueberry crumble | Women's Weekly Food

Ingredients

• 1/4 cup (55g) brown sugar
• 1/4 cup (55g) caster sugar
• 3/4 cup (110g) plain flour
• 1 teaspoon ground cinnamon
• 100 gram butter, chopped coarsely
• 3/4 cup (65g) rolled oats
• 1/2 cup (70g) coarsely chopped roasted macadamias
• 500 gram blueberries, fresh or frozen
• 1 tablespoon lemon juice
• 1/4 cup (55g) caster sugar, extra
• vanilla ice-cream, to serve (optional)