Gluten-free Apple Nut Crumble Pie - Gluten Free Kitchen

Ingredients

• 350 g gluten-free flour mix, (e.g. Schär Mix C Pâtisserie)
• 200 g butter
• 140 g caster sugar
• 1 tbsp cinnamon
• 1 tsp vanilla extract
• 1 pinch salt
• 4 apples, (e.g. Elstar, Jonagold, Golden Delicious or Goudrenets)
• 50 g raisins
• 2 tbsp caster sugar
• 2 tbsp cornstarch
• 1 tbsp lemon juice
• 1 tsp cinnamon
• 50 g mixed nuts, (e.g. walnuts or almonds)
• 1/4 dough