Heat 2 inches of vegetable oil to 365 degrees F in a deep skillet. Mix 1/2 cup sugar and 1 to 2 tablespoons cinnamon on a plate. Cut stale white bread into sticks and fry until golden, about 1 minute. Drain on paper towels, then roll in the cinnamon-sugar while still hot. Serve with strawberry jelly as ketchup.