1. Wash the fruit. Rinse the avocado under cool to lukewarm running water, scrubbing the peel gently with your fingers.
2. Place the avocado on a secure surface. Lay the avocado on its side. It will be easier and safer to cut the avocado on its side rather than on its end since more of the skin's surface will be secured in place.
3. Slice the avocado in half lengthwise. Use a sharp kitchen knife to cut the avocado from top to bottom.
Note that with the avocado on its side, you will be making a horizontal cut through the long side of the fruit rather than the short width side.
Securely grip the avocado in your non-dominant hand. If necessary, hold the fruit with a towel to give yourself more traction and a firmer grip.
Start from the narrower end, or the "top," and across to the wider end, or the "bottom."
You will need to cut around the pit at the center of the fruit. You will not be able to cut through it.
4. Wist the two halves apart. Pick up the fruit in both hands and rotate the halves in opposite directions to twist them apart.