While cooking, whisk the eggs, cream, salt, and pepper together.
Reserving approximately 1 tablespoon of the bacon fat, add the chopped onion and sugar.
Stir frequently until onions are caramelized, remove the onions and give the inner liner a quick rinse and scrub.
Return the liner, add about 3 cups of water.
Coat the inside of a 7 cup Pyrex bowl with butter - a similar dish will work as well.
Layer as follows, using half the ingredients for each layer - except for the Swiss which has 3 layers:Bread cubesCheeseBaconAsparagusCaramelized onion
Repeat
Slowly pour egg mixture over the layered ingredients, and then top with cheese.
Using the included wire basket, carefully lower the strata into the Instant Pot. At this point the water should come up to about the half-way point in the cooking dish.
Seal the lid, select Manual high pressure and set time to 20 minutes. Press start. Let the Instant Pot naturally release for 10 minutes, then press to vent.
Carefully remove once the pressure is reduced and serve.
Notes
Weight Watchers Freestyle = 4 Points per serving for 4 servings. Points calculated with using low point bacon and cheese