'6 tablespoons of olive oil - 90 ml'
'1 tablespoon of butter or margarine - 15 g'
'1 kg of onion, chopped into wedges or coarsely chopped'
'1 kg of beef, cut into cubes'
'Salt to taste'
'Boiling water'
'1 tablespoon of tomato extract - 15 g'
'1 tablespoon of sweet paprika - 9 g'
'6 tablespoons of olive oil - 90 ml'
'1 tablespoon of butter or margarine - 15 g'
'1 kg of onion, chopped into wedges or coarsely chopped'
'1 kg of beef, cut into cubes'
'Salt to taste'
'Boiling water'
'1 tablespoon of tomato extract - 15 g'
'1 tablespoon of sweet paprika - 9 g'
'Heat the olive oil and butter or margarine over medium heat'
'Add the onion and cook, stirring occasionally until it browns slightly'
'Add the beef and fry, stirring until it loses its red color'
'Season with salt'
'Reduce the heat and cover the pan'
'Let it simmer in the liquid that the beef releases, adding hot water as needed to keep it saucy, for about 1 1/2 hours or until the beef is tender'
'At the end of cooking, add the tomato extract and paprika'
'Stir well'
'Check the seasoning and add more salt if necessary'
'Serve in four portions.'