Preheat oven to 350 degrees F.
Beat cream cheese with an electric mixer. Add in the sour cream and mayonnaise and mix in. Beat in the garlic and onion powder.
Add the chicken, cheddar cheese, and jalapenos and fold in.
Spread in a 10-inch baking dish or a 9 by 13-inch baking pan
Bake for 25 to 35 minutes or until the cheese is melted. Serve with crackers, chips, or vegetables.