Add the butter to the instant pot and set to saute. When melted add the onions. Cook for around 4 minutes and then add the finely chopped garlic and cook for a further 1 minute.
Add the sweet paprika and combine before adding the beef. Saute for a couple of minutes and then add the chopped peppers, beef stock, tinned tomatoes, tomato puree, brown sugar and salt/pepper. Mix well. Put the lid on the instant pot and set on high pressure for 35 minutes.
Leave under pressure for 15 minutes and then do a quick release if required and remove the lid.
Stir well and set the instant pot to saute. Remove approximately 4 tablespoons of liquid and add to the cornstarch. Mix together and add back to the pot. Stir in well continuosly until the sauce is thickened (around 2 minutes).
Serve over either, pasta, rice or potatoes. Add a dollop of sour cream and garnish with the parsley.
Calories: 494kcal | Carbohydrates: 22g | Protein: 38g | Fat: 29g | Saturated Fat: 15g | Cholesterol: 147mg | Sodium: 509mg | Potassium: 1133mg | Fiber: 4g | Sugar: 11g | Vitamin A: 2679IU | Vitamin C: 42mg | Calcium: 108mg | Iron: 5mg