In a bowl, combine ground chuck, jalapeños, and cheddar.
Cut onions into 1/2-inch rings and pair up large rings with smaller ones.
Add meat to the edge of large rings, then place smaller rings inside.
Wrap each meat-stuffed onion in bacon.
Heat smoker to 250°F and use hickory chunks.
Smoke bacon-wrapped onion rings for 45-60 minutes until they reach 165°F.
For the BBQ sauce, mix ingredients in a saucepan and heat until it thickens.
When onion rings are at 150°F, brush them with the BBQ sauce and keep smoking.
For the dipping sauce, mix mayo, sriracha, vinegar, garlic paste, and honey.
Let onion rings cool a bit, then serve with the dipping sauce.