Select Sauté on the Instant Pot and adjust the time to 3minutes. Once the pot starts to warm up, add 2 tbsp oil and the onion and cook until tender.
Press Cancel then add the pasta, water, butter, salt, pepper, garlic powder, paprika and cumin to the inner pot, then use a wooden spoon to give everything a stir and deglaze the base of the pot.
Secure the lid on the Instant Pot, and select Pressure Cook on ‘High’ and program for 5 minutes.
Once the program has finished, perform a quick pressure release and when the valve drops, remove the lid.
Add the milk to the pot and stir into the pasta, then slowly fold in the cheeses in batches, making sure the pasta mixture remains creamy between each addition.
Add the crabmeat to the pot, then put the lid back on and leave to warm through for 5 minutes.
Give everything a stir and top with panko breadcrumbs