How to Make It
Preheat oven to 425°F. Line a rimmed baking sheet with aluminum foil or parchment paper.
Cut a slit lengthwise in each chile, leaving stem intact. Using a spoon, remove and discard seeds and membranes.
Stir together garlic, cream cheese, pepper Jack, Cheddar, and salt in a medium bowl. Spoon about 1 heaping tablespoon cheese mixture into each chile. Wrap each stuffed chile with a bacon strip. (Wrap bacon strip so that ends are on bottom [unstuffed side] of popper.) Arrange poppers, stuffed side up, in a single layer on prepared baking sheet.
Bake in preheated oven until bacon is crispy, 22 to 25 minutes.