shrimp in sweet and sour sauce with pineapples

You need to prepare the shrimp: a good hostess will always wash the products and clean them. Do not pour out the syrup from canned pineapples, it will be useful to us. Garlic cloves and pepper need to be cleaned, remove the bitter seeds and cut into small pieces. Finely chop the washed green onions.
Boil the shrimp in salt water.
Mix starch and boiled water so that there are no lumps, add sugar and pineapple syrup to it, pour everything into a saucepan, we also send sweet pepper and garlic there. Fill the products with ketchup, salt, add allspice to taste and a teaspoon of lemon juice.
Put the pan on high heat for 5 minutes, stir. Cut the tomatoes into small pieces and also finely chop the pineapples, add to the prepared dish, add green onions to the same place. Turn down the heat and boil for another 5 minutes. Boiled shrimp fall asleep in the sauce and boil in it for another 5 minutes, and remove from heat.
Use boiled crumbly rice as a side dish.