MasterChef Australia

Season 18 Episode 48: Mystery Box Challenge: Marion Grasby

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Watch MasterChef Australia season 18 episode 48 tv series online free
Release: Jul 12, 2026

To mark the start of Heat Week, food and media mogul Marion Grasby returns to the MasterChef for the first time in sixteen years, with a spicy mystery box challenge.

MasterChef Australiaexpand_lessSeason 18
Episode 1
Auditions, Day 1: Your Dream on a Plate
Episode 2
Auditions, Day 2: Food Dream
Episode 3
Auditions, Day 3: Showstopper Dish
Episode 4
Mystery Box Challenge: Jimmy & Jane Barnes
Episode 5
Elimination Challenge: Favourite Home Dish
Episode 6
Invention Test: Cereal
Episode 7
Pressure Test: Maggie Beer's Sour Cream Pastry
Episode 8
Immunity Challenge: Ultimate Breakfast
Episode 9
Elimination Challenge: Quick Carb Midweek Dinner
Episode 10
Team Challenge: Family Feast
Episode 11
Elimination Challenge: Family Food Traditions
Episode 12
Mystery Box Challenge: Catherine Zhang
Episode 13
Elimination Challenge: Viral Ingredients
Episode 14
Service Challenge: Viral-worthy Dish
Episode 15
Immunity Pin Challenge: Banging Sandwiches
Episode 16
Mystery Box Challenge: Rick Stein
Episode 17
Elimination Challenge: Cuisines from Around the World
Episode 18
Invention Test: Fusion
Episode 19
Pressure Test: Rosheen Kaul's Chou Farci
Episode 20
Mystery Box Challenge: Dim Sim Lim
Episode 21
Elimination Challenge: Heritage
Episode 22
Team Challenge: Team Relay
Episode 23
Immunity Pin Challenge: French Techniques
Episode 24
Mystery Box Challenge: Matt Sinclair vs. Daniel Dobra
Episode 25
Elimination Challenge: Classic Flavour Pairings
Episode 26
Pair Challenge: Chocolate and Peanut Desserts
Episode 27
Elimination Challenge: Time vs. Ingredients
Episode 28
Mystery Box Challenge: Curtis Stone
Episode 29
Elimination Challenge: Pork
Episode 30
Comeback Challenge: No Regrets
Episode 31
Elimination Challenge: Native Ingredients
Episode 32
Lucky Dip: Adriano Zumbo
Episode 33
Elimination Challenge: Ice Cream Taste Test
Episode 34
Invention Test: Air Fryer
Episode 35
Immunity Pin Challenge: Beat the Chef
Episode 36
Mystery Box Challenge: Josh Niland
Episode 37
Elimination Challenge: Flat Iron Steak
Episode 38
Immunity Challenge: Tom Sarafian
Episode 39
Pressure Test: Kirsten Tibballs' Chocolate Iris
Episode 40
Mystery Box Challenge: Sarah Todd
Episode 41
Invention Test: Judges' Fridges
Episode 42
Team Challenge: Two-course Fine Dining Menu
Episode 43
Elimination Challenge: Contestants' Hero Ingredient Choice
Episode 44
Mystery Box Challenge: Sanjeev Kapoor
Episode 45
Elimination Challenge: International Ingredients
Episode 46
Immunity Challenge: Ice Cream Flavours
Episode 47
Pressure Test: Sam Aisbett's Crab Salad
Episode 48
Mystery Box Challenge: Marion Grasby