As you may know by now, pressure cookers help you to cook significantly quicker than cooking on the stove; but have you considered pressure cooking slow at low pressure instead of fast at high pressure?

There is a method of pressure cooking that turns your pressure cooker into a mini oven. To use a ‘pressure cooker oven’ recipe, you will pressure cook your food on high pressure for a short time, and then let it sit on the warm setting for a few hours until it finishes cooking. Follow this pressure cooker oven roast recipe, or any pressure cooker oven recipe you choose, to find out the exact cook times.

A roast is one of the best foods to cook using a pressure cooker oven. Generally, you cannot cook other vegetables and side items at the same time in the same pressure cooker since the roast is big, and there needs to be enough space for the steam and pressure to bake the roast.

If you have a very large or commercial-sized pressure cooker, you may be able to get away with cooking more than one food item; especially if you have metal pressure cooker racks that stack on top of each other, then you can cook many foods.

Keep reading to see a fantastic Instant Pot Oven Roast Beef Recipe and some helpful tips.

Instant Pot Oven Roast Beef Recipe

To view the original recipe – click here.

Ingredient You Will Need

Cooking Instructions

1. In your Instant Pot, pour the beef stock in the bottom of the pot and cover it with a metal pressure cooker insert.
2. On the side, mix your seasonings in a small bowl so that they are well blended.
3. Before adding the roast to the pressure cooker, make ½” deep cuts in it and put garlic slices into each cut. Pour the olive oil and seasoning mix over the roast. Carefully rub in the oil and spices, so the roast is well-coated; make sure you do not knock out any of the garlic slices.
4. Add the roast to the pressure cooker. You do not want the roast touching the liquid below, so use the metal insert and a pressure cooker safe dish to keep them separated.
5. Put the lid on the pressure cooker and lock it. Pressure cook on the high-pressure setting for 3 minutes. The three minutes should start after the cooker reaches the correct pressure; if you have an electric pressure cooker, it will automatically start the timer when it reaches a high pressure, but with a manual, stovetop pressure cooker, you will have to pay attention to when the pressure gets high enough and start a timer yourself.
6. After 3 minutes is up, do not unplug or open your pressure cooker. Instead, set it to warm. Leave it on the warm setting for 2 ½ hours. Check the temperature of the roast. At this point, it should be rare. Cook for another hour if the temperature needs to raise more or if you want it done well.
7. Once the roast is satisfactory, carefully remove it from the pressure cooker and slice it however you would like.

Helpful Tips and Questions

Here are some useful tips and answers to questions that may come up when pressure cooking your roast.

Why should my roast not touch liquid while pressure cooking?

When you pressure cook a roast or a large chunk of any meat, you must add liquid to the pressure cooker to create steam. Without steam, the pressure will not build enough to cook the meat all the way through.

Usually, for meats, beef, chicken, or vegetable stock is the best liquid to put in the base of the cooker; the flavor will cook into the meat, rendering it super tasty.

However, the liquid in the bottom of the pressure cooker should not touch the bottom of the roast. You can use a metal rack or trivet to keep them separated. If the roast is submerged in liquid, it will not roast correctly during the longer part of the cooking process.

Other pressure-cooked foods have no problem when submerged in a liquid, but when cooking with the pressure cooker oven method, separation of the two is crucial for an evenly cooked piece of meat.

Best side items to go with a roast:

Can you open the pressure cooker before switching to the warm setting?

In reference to this recipe, you should not open the pressure cooker before changing the setting from high pressure to warming. The heat and steam generated by a short time on high pressure need to remain in the cooker so that it will still cook the meat completely over the next couple of hours.

Remember to release the pressure before opening the pressure cooker.

When you are done cooking your roast, or when you want to check the temperature of the beef, you should always release the pressure before trying to open the lid. If the pressure bursts out of the cooker all at once, it can spew out food and burn anyone standing next to the pressure cooker pot. Release the pressure fast with the quick-release valve, or let the pressure naturally diminish, but do not force the lid open.

The Key to Pressure Cooking the Best Roast

Follow these cooking instructions as carefully as you can. It may seem simple, but even the smallest leak in pressure can cause the roast to be undercooked, which will be a nightmare if you have guests waiting. The best way to avoid an unwanted pressure leak in your pressure cooker is to clean it before and after each use and replace any parts that are dysfunctional or worn.