Step 1

Put the butter, onions and sugar in the Instant Pot and select “Saute”.

Step 2

Saute for 15 minutes until the onions are caramelized.

Step 3

Add garlic and flour and saute for 1 more minute.

Step 4

Add balsamic vinegar and broth and stir a bit.

Step 5

Close the lid and cook on high pressure for 5 minutes.

Step 6

When cooking time ends, wait for a natural pressure release.

Step 7

Top with baguette slices and swiss cheese.

Step 8

Broil it for 3 minutes in the oven or with Instant Pot Crisp Lid.