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1
Place roast in a bowl and rub browning sauce over the surface.
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2
Heat oil in a large nonstick skillet over medium heat. Add roast and cook until browned on all sides, about 8 minutes. Transfer to an electric pressure cooker (such as Instant Pot(R)). Combine water, wine, and bouillon in a bowl and add to pressure cooker. Sprinkle soup mix on top. Add onion and Worcestershire sauce.
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3
Close and lock the lid. Select high pressure according to manufacturer's instructions; set timer for 45 minutes. Allow 10 to 15 minutes for pressure to build.
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4
Release pressure carefully using the quick-release method according to manufacturer's instructions, about 5 minutes. Unlock and remove the lid.
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5
Add potatoes, carrots, and pearl onions, making sure not to overfill pressure cooker. Stir to coat in liquid. Close and lock the lid. Select high pressure according to manufacturer's instructions; set timer for 10 minutes. Allow 10 to 15 minutes for pressure to build.
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6
Release pressure carefully using the quick-release method according to manufacturer's instructions, about 5 minutes. Unlock and remove the lid. Transfer roast and vegetables to a serving platter.
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7
Combine water and cornstarch in a bowl; pour into juices in the pressure cooker. Select Saute function and boil until thickened, about 5 minutes. Season gravy with salt and pepper and serve alongside roast and vegetables.