You can prepare gratin in multiple ways but you always put it in the oven to brown it. Here you will mix up tuna and mushrooms before putting the ingredient in an oven dish to brown.
Ingredients
Directions
Put the instant pot in mode browning
Make the onions and shallots brown for 5min
Add the mushrooms, parsley and white wine
Let brown 3min
Add the minced tuna and fresh cream
Brown it for 2 to 3min
Pour into an oven dish, sprinkle with breadcrumbs and grated gruyere
Put in the oven at 180° and brown it
Ingredients
Directions
Put the instant pot in mode browning
Make the onions and shallots brown for 5min
Add the mushrooms, parsley and white wine
Let brown 3min
Add the minced tuna and fresh cream
Brown it for 2 to 3min
Pour into an oven dish, sprinkle with breadcrumbs and grated gruyere
Put in the oven at 180° and brown it