Boil enough water to pour over the corn husks. Weigh down the husks with something to make sure they are all submerged. I used the pot I boiled the water in. Soak for 45 minutes.
Whip the lard in a bowl with a spatula until smooth. Add in the masa harina flour. Mix.
Measure out 2 cups of chicharrones.
Lightly crush.
Mix the chicharrones into the dough.
Mix in the black beans, green onions, salt, and chicken stock.
Form a small turd-like dollop of the dough down the center of a corn husk.
Fold the right side of the husk half way over the tamale.
Fold the top part of the husk over the tamale.
Roll it up.
Do this until you run out of dough. This recipe yields about 16 tamales.
Since I don't have a proper steamer to steam these tamales, I used my sticky rice steamer. Fill the pot with 2 inches of water and bring to a boil. Layer all of the tamales so they are standing somewhat upright.
Cover with any remaining corn husks. Put a kettle lid over the tamales. Steam for 1 hour.
Let the tamales rest for 10 minutes before serving. Eat them in the husk. Top with sour cream and a salsa of your liking.