Preheat oven to 350°F. Prepare tart pans by spraying with cooking spray or lining with small muffin cups that have been sprayed with cooking spray. Blend butter, flour and brown sugar well. Form into small balls and put in prepared tart pans.
With fingers, shape each ball into a tart. Bake until lightly browned, approximately 10 minutes. Cool slightly and remove from pans. Fill with Pure Labrador spread of choice. Garnish with dollop of whipped cream.