Preheat oven to 350°F.
Cut the jalapeños into a boat cut. (Click the link above to see how to do a Boat Cut.)
Place the jalapeños on a cookie sheet. Place sheet in preheated oven. Cook for about 10 minutes. (Skip this step if you prefer your finished jalapeños to be more raw and crunchy.)
Remove from oven and allow to cool slightly so you can handle them.
Add cream cheese to each jalapeño to cover the bottom, leaving a concave "well" to place other ingredients. (Click the link below to see pictures of this step, if the instructions are unclear to you.)
Place a small bit of beef barbacoa into each jalapeño. Drizzle with a small bit of the juice from the barbacoa pan, if desired.
Sprinkle a small bit of Cheddar cheese over the beef. Just a bit.
Crush 2 tater tots and place on top of the cheese.
Mash down very slightly and form to the top of the jalapeño to make sure all the toppings stay put during cooking.
Place jalapeños back on cookie sheet and place back in oven.
Cook, watching closely, about 10 - 15 minutes. Check to make sure jalapeños are done to your liking.
Remove from oven and sprinkle tops with more Cheddar cheese.
Set oven to broil and allow to heat.
Place jalapeños back in oven. Cook until cheese on top is melted and bubbly.
Remove from oven when done.
Place jalapeños on platter or individual plates.
Drizzle with a generous amount of sour cream and a little hot sauce.
Enjoy hot.