Fill a large pot with water. Add the chicken tenderloins with the water and then bring the water to a boil.
Once the water is boiling, reduce the heat to low and cover the pot. Cook the chicken for 8 to 10 minutes. Do not overcook the tenderloins or it will become rubbery. The chicken should register at 165 degrees with a meat thermometer.
Once the chicken is ready, remove it from the water and let it cool. Use a hand mixer or food processor to shred the chicken into fine pieces.
Next, run your jalapeños through a food processor or finely dice them.
Add the mayonnaise, jalapeños, and seasonings to the shredded chicken. Stir well and then serve. Add additional minced jalapeños, if needed.
Refrigerate any leftovers.
