Preheat your oven to 200°C (400°F) and line a baking sheet with parchment paper.
Slice each jalapeño lengthwise, then carefully remove the seeds and membranes to control the heat level. Keep some seeds if you prefer extra spice.
In a mixing bowl, combine softened cream cheese with shredded cheddar and chopped chives, then season lightly with salt and pepper. Mix until smooth and well incorporated.
Use a spoon or piping bag to fill each jalapeño half with the creamy mixture, pressing gently to pack in the filling without overfilling.
Wrap each stuffed jalapeño with a half strip of bacon, overlapping slightly, and secure with a toothpick or skewer to hold everything together.
Arrange the wrapped poppers on the prepared baking sheet, spacing them evenly. Bake in the preheated oven for 20–25 minutes, until the bacon is crispy and golden brown.
Halfway through baking, check the bacon’s crispiness and adjust placement if needed. Keep an eye on bubbling cheese and sizzling bacon.
Once done, remove the poppers from the oven and let them rest for 5 minutes so the filling can set and the bacon firms up.
Remove the toothpicks carefully, transfer the poppers to a serving platter, and garnish with extra chives if desired.
Serve warm with a side of cool sour cream or your favorite dip, and enjoy that smoky, spicy crunch in every bite.