The finale took place over three rounds: In the first round, the finalists had to choose at least one ingredient from a selection of every mystery box they had in 60 minutes from which Ben picked Elena's mystery box and Diana picked Peter Gilmore's mystery box. Ben's Lemon Myrtle Ice Cream with Macadamia Shortbread received 26 points out of 30, while Diana's Abalone with Chinese Broccoli, Mushroom and Green Juice received raved reviews from the judges and got a perfect score of 30 points. For the second round, there were no rules, with contestants cooking three identical dishes to the judges in 75 minutes. Ben's Cardamom Coffee Ice Cream with Butternut Three-ways and a Dutch Spice Biscuit impressed the judges with his creativity of his ice cream and received 28 points while Diana's Malaysian Oatmeal Prawns with Vegetables in a Creamy Sauce also impressed the judges and received 27 points. Diana took the lead with the total score of 57 while Ben got a total of 54 points. For the last round, Ben and Diana faced the longest pressure test yet in which they have to recreate Kirsten Tibballs' Trio of Fruits dessert made of chocolate disguised as an apple, pear and mandarin. In six hours, Both Ben and Diana struggled with the final task, failing to make the sugar-crusted liquor center for the apple, which came out like a jelly rather than a liquid. In the tasting, Diana's trio of fruit received praise in flavor but the chocolate in her mandarin is thick and lacking in mandarin flavor. Ben had a better replication despite accidentally covering his pear with too much tempered chocolate. Diana scored 33 points (8 points each from all the judges except Matt who gave 9 points), tallying to the overall score of 90 points. Ben scored 35 points (9 each from all of the judges except Gary who gave 8 points), but it wasn't enough to beat Diana finalizing the score of 89 points. Winner Announced - Diana Chan won the title of Masterchef 2017, the grand prize of $250,000 and a monthly column in the magazine Delicious while Ben Ungermann, as runner-up, received $40,000. Karlie Verkerk, who finished in third place, also received a cash prize of $10,000.