Preheat oven to 350ºF. Line a baking sheet with foil and spray with nonstick cooking spray. Cut apples in half and use a spoon or paring knife to remove the core. Place cut apples onto baking sheet and place into the oven. Let bake until apples are cooked through and tender.
In a small bowl, mix Forager Project® Sour Cream, agave, cardamom, and cinnamon until smooth and combined.
Place apples onto plates or a serving dish. Drizzle with sour cream mixture and top with toasted walnuts.