Blueberry Apple Crisp - Spoonful of Scrumptious

Ingredients

• 4 medium (5 cups) apples, peeled, cored, & sliced into 1/4 inch pieces
• 1 1/2 cup blueberries
• 2 tsp lemon juice
• 1 tsp ground cinnamon
• 1 1/2 tbsp corn starch
• 3 tbsp granulated sugar
• 1 tsp vanilla extract
• 3/4 cup brown sugar, packed
• 3/4 cup oats
• 1/2 cup all-purpose flour
• salt
• 1/2 cup unsalted butter, cold