You can get rid of ants in your kitchen and home naturally by mixing 1 part borax with 3 parts of powdered sugar to make a natural ant bait that will kill the ants.
Put the homemade ant bait into some tiny containers such as bottle caps or milk jug caps and the ants will eat the bait and die.
You can also use yeast to kill ants as well. The yeast will swell the ants insides and kill them.