Preheat oven to 350 degrees. Place racks in middle and upper positions. Line two cookie sheets with parchment. If using non-stick cookie sheets, leave unlined.

Sift flour, baking powder, cinnamon, cardamom, baking soda and salt into a medium bowl. In a small bowl place oats, walnuts, cranberries and American Heritage Chocolate. In a large bowl beat butter and sugar until smooth, about 2 minutes. Scrape down sides of bowl with a rubber spatula. Add oil, egg and vanilla and combine. Add flour mixture with mixer set to low. Do not over mix. Add nuts, fruit and chocolate and mix until just combined. Use rubber spatula to ensure even distribution.