Cut the veins of the hearts and fry in vegetable oil for 10 minutes on high heat.
Then add the onion sliced into half rings as well as carrots, Bulgarian pepper cut into small cubes. If it is necessary to pour a little water, fire to turn down and simmer for 20 minutes with the lid closed.
Tomato puree blender. Add mayonnaise and mustard, mix.
Add spices and tomato and mayonnaise sauce. Add 200 ml of water. Simmer for another 10 minutes.