Pre-heat smoker to 350 degrees.
Chop and sauté the onion.
Soften the cream cheese by slicing each solid rectangle into about five pieces, and put them in a medium or large sized glass measuring cup. Heat in the microwave at 50% about 1.5 minutes.
Cut the top off the jalapeños and core them. Wash out any remaining seeds under the sink water.
In a large bowl, mix the softened cream cheese, grated cheddar cheese, sautéed onion, and minced garlic. Add Meat Church Gospel rub and mix well.
Fill each cored / hollowed jalapeño poppers with filling.
Wrap a slice of bacon around each filled jalapeño.
Arrange bacon wrapped jalapeño poppers on the grilling pan.
Sprinkle additional BBQ rub on top of the poppers.
Cook in the smoker 45 minutes.