Mystery Box: Jimmy Barnes (S18E04)
S18E04
Aussie rock icon Jimmy Barnes kicked off the season with an exciting mystery box challenge, motivating the Top 24 contestants with their favorite seasonal ingredients. The chef who creates the standout dish of the day will earn immunity from elimination.
Show
MasterChef Australia
Episode
S18E04
Air Date
Apr 26, 2026
Season 18 Episodes
S18E01
Episode 1
S18E02
Auditions: Group 2
S18E03
Auditions: Second Chance
S18E04
Mystery Box: Jimmy Barnes
S18E05
Episode 5
S18E06
Invention Test: Cereal
S18E07
Pressure Test: Maggie Beer
S18E08
Immunity Challenge: Andy Cooks
S18E09
Elimination Challenge: Reinventing Carbs
S18E10
Team Challenge
S18E11
Elimination Challenge: Family Traditions
S18E12
Mystery Box Challenge: Catherine Zhang
S18E13
Elimination Challenge: Viral Ingredients
S18E14
Team Service Challenge: Viral-worthy Dish
S18E15
Immunity Pin Challenge: Khanh Ong
S18E16
Mystery Box Challenge: Rick Stein
S18E17
Elimination Challenge: Cuisines from Around the World
S18E18
Invention Test: Fusion
S18E19
Pressure Test: Rosheen Kaul
S18E20
Mystery Box Challenge: Dim Sim Lim
S18E21
Elimination Challenge: Heritage
S18E22
Team Challenge: Team Relay
S18E23
Immunity Pin Challenge: French Techniques
S18E24
Mystery box Challenge: Matt Sinclair & Daniel Dobra
S18E25
Classic Pairs Elimination Challenge
S18E26
Invention Test: Reese's Peanut Butter Cup
S18E27
Elimination Challenge: Time or Ingredients?
S18E28
Mystery box Challenge: Curtis Stone
S18E29
Episode 29
S18E30
Comeback Challenge
S18E31
Elimination Challenge: Aussie Native Ingredients
S18E32
Mystery Box Challenge: Adriano Zumbo
S18E33
Episode 33
S18E34
Episode 34