Tomato ketchup

1/2 kg tomatotes
2tsp garlic
2tbsp sugar
2 tsp salt
1/2 tsp garam masala
1 tsp chilli powder
2 tsp vinegar
1/4 tsp sodium benzonate

Mix sodium benzonate in little boile water.
Cook tomatoes and garlic till soft.Strain it.
Again cook it in high heat with sugar,salt,garam masala,chilli powder
and vinegar and cook till thick.
When the mixer begins to spurt in the center,switch off the stove and add sodium benzonate.
Here sodium benzonate acts as a preservative.You can avoid preservative.