For this recipe you need:
-Blueberries
-Vanilla extract
-Granulated white sugar
-Lemon zest
-Lemon juice
-All-purpose flour
-Cornstarch
For the topping:
-Quick oats
-Butter
-All-purpose flour
-Granulated white sugar
-Brown sugar
-Chopped almonds
-Nutmeg
-Cinnamon
-Salt