What special prize does the character Katherine Barlow win every 4th of July in the novel Holes?

In the novel "Holes," Katherine Barlow, also known as "Kissin' Kate Barlow," wins a special prize of a gold star every 4th of July for her famous homemade spiced peaches. This annual recognition highlights her skills as a cook and her status in the community of Green Lake. However, her life takes a tragic turn, leading her down a different path that becomes central to the story.