# Cut the
tomatoes into big pieces without peeling them. Remove the seeds of the
peppers and cut them into big pieces also. Dice the
onion into small pieces.
# Put this mixture into a pot, add salt. Place the pot over medium heat and boil until the pieces lose their fit shape.
# Place the cooked mixture onto a colander and force over it to make it pass to the other side of the colander. Place the pieces on the colander into the pot and cook again.
# During the cooking, when the color starts to change add starch which is mixed with some cold water. Cook by stirring until it reaches right consistency.
# When it reaches right consistency add vinegar and
sugar. Boil the mixture for a while more.
# You may fill into a jar after cooling it down.