Warm Cinnamon Apple Crumble with Crunchy Oat Topping

Ingredients

• 4 medium apples (Granny Smith or Honeycrisp), peeled, cored, and sliced
• 60 g brown sugar
• 15 ml lemon juice
• 1 g ground cinnamon
• 1/2 g ground nutmeg
• 5 ml vanilla extract
• Pinch of salt
• 100 g old-fashioned oats
• 120 g all-purpose flour
• 100 g brown sugar
• 115 g unsalted butter, cold and diced
• 2 g baking powder
• 1/2 g salt
• Vanilla ice cream or whipped cream