Set the Instant Pot to saute. Add olive oil and let it heat up. Add in diced shallots and cook for 2-3 minutes till it becomes translucent.
Add in fennel and apple and stir till it is nice and fragrant, about a minute. Mix in cider vinegar, alcoholic cider, vegetable broth, grainy mustard and maple syrup. Add the cabbage and stir till everything is well uniformly mixed in. Add a big pinch of sea salt and generous amounts of freshly cracked black pepper.
Hit cancel on your Instant Pot. Close the lid and set the pressure valve to the ‘sealing’ position. Set the Instant Pot to pressure cook on manual mode for 5 minutes. Once the time is up, quick release the pressure. Open it carefully. Taste and adjust seasoning.
Garnish with freshly chopped parsley, fennel fronds, a big squeeze of lemon and some more freshly cracked black pepper before serving.
Notes
I recommend using a mandoline for shredding cabbage. It makes shredding 2lb cabbage so much easier. This recipe is great for meal prep, make a big batch over the weekend and use throughout the week. Add the garnish just before serving. It makes a great side and it is also delicious on toast.