Check that the oil is heated to 350°F. If I am frying chicken tenders on the stove, I use a thermometer. If I am using a deep fryer, it self regulates the temperature, which is really nice.
Next, get a draining station set up for the chicken. I like to place a paper grocery bag down with a layer of paper towels on top and a cookie rack on top.
I like to double-check that the oil is hot enough by dropping a rogue/leftover chunk of breading into the oil. If it starts bubbling up right away, it is ready to go. If the breading sinks and doesn't start cooking at first, it will absorb a lot of oil and won't taste very good.
Using tongs, place a few chicken tenders in the oil but only in one layer. Do not place them on top of each other or they can stick together. (If using a deep fryer, give the basket a shake to make sure the tenders don't stick to the bottom.) Do not overcrowd the oil as this will drop the temperature and the chicken won't cook right.
Cook the tenders until they are golden brown. If they are not fully submerged in oil, flip them over and cook until the second side is also golden.
Drip the excess oil off the tenders, then place them on the cookie rack to drain. (If using a deep fryer, I hang the basket on the side for a minute or two before flipping them onto the pepper towels.)
Repeat and fry the rest of the chicken tenders in batches. If you are using a deep fryer, it should go pretty quickly. If you are using the stove, keep an eye on the oil level and the temperature. It might need increasing and you might need to add more oil. (This is why a thermometer is really helpful.)
Serve tenders while they are still hot with a delicious dipping sauce.