Put the cup of lentils and the three cups of water in a large pot with a lid. Leave on medium-high heat for about 20 minutes or until the lentils are soft.
When the lentils are ready, drain them and leave aside.
In a separate bowl mix the soy sauce with rice vinegar and sugar. Leave aside until ready to use.
Put the oil and garlic in a large skillet. When the garlic begins to brown add the chile, leave for 30 seconds and put the lentils and the basil. Leave it all for about five minutes until the basil starts to wilt. Add the sauce that you prepared with soy and vinegar.
Leave it for two more minutes and try, adjust the seasoning if necessary.