1Preheat an oven to 400 degrees F (200 degrees C).
2Stir together the cream cheese, Cheddar cheese, mayonnaise, ranch dressing mix, and garlic powder in a mixing bowl until evenly blended. Spoon some of the cheese mixture into each jalapeno half, wrap with half a bacon strip, and secure with a toothpick. Arrange the wrapped jalapeno halves onto a broiler pan.
3Bake in the preheated oven until the bacon is no longer pink and beginning to brown, about 20 minutes.
Footnotes
Tip
Aluminum foil can be used to keep food moist, cook it evenly, and make clean-up easier.