If making with mashed potatoes follow recipe starting at step 6
Open your beer bottle or can and leave out overnight so it looses it's bubbles and becomes flat.
Pour it into your Instant Pot and open your Kitchen Deluxe vegetable steamer basket, lower inside your pot.
Put brats on steamer rack and close lid. Close steam valve and set to manual, pressure, high for 5 minutes. (if yours are really large they may need more time but this should be just right)
Do a quick release. Since this is pork always make sure to check that they are cooked completely (can cut one in half to ensure or use thermometer)
Put in a bun and add sauerkraut and mustard on top...and other favorite toppings.
If making with mashed potatoes follow these directions: Put 6 washed, partially peeled and diced potatoes into pot with 1/2 c. broth. Place 5-6 frozen or defrosted brats and/or sausages right on top of them.
Close lid and steam valve and set to high pressure for 6 minutes with a 3 minute natural pressure release. Then release rest of steam.
Remove brats and set aside to keep warm. If you want to crisp outsides you can put into an air fryer at 400 degrees for a few minutes, under the broiler, or sear outsides in a pan on your stovetop.
Use potato masher in pot to mash potatoes then add fixin's like: 1/2 c sour cream, 1/4 c. bacon bits, chives, 1 tsp. garlic salt, 1/4 c. shredded cheese, pinch of pepper, and thin mixture with as much milk as you desire until it is the right consistency for you.