In a large bowl, use your hands to mix together beef, pork, garlic, onion, pepper, herbs, almond flour, ketchup, mustard, egg, salt, red pepper flakes, and black pepper until completely combined.
Use a sharp knife to poke a hole in every fingerling potato. Place the basin inside the instant pot then add the fingerling potatoes in the bottom. Pour 1 cup of bone broth on top of the potatoes along with a pinch of salt then place the instant pot rack on top of potatoes (the rack that comes with the instant pot).
Place two long pieces of foil on top of each other (like a plus sign) then place the meatloaf mixture in the middle and shape into a loaf that will fit inside the instant pot. Roll up the sides of the foil to create a basket shape holder around the meatloaf then place in the instant pot on top of the rack.
Secure the lid, close off the pressure valve, turn on and press manual to high pressure and press the up button until the time hits 30 minutes. The instant pot will have to come to pressure then the time will begin.
While meatloaf cooks, turn on the broiler. Then, place all ingredients for the sweet & spicy sauce in a small saucepan over medium heat and let reduce for 10-15 minutes, until thick and darker in color.
Once the time is up, quick release by turning the valve slowly to vent for a few seconds before opening up the vent completely. Once it is done venting, the float valve will drop.
Remove meatloaf and place on a baking sheet. Then strain the potatoes from the liquid and place on the baking sheet with meatloaf. Brush melted ghee on top of the potatoes and sprinkle with salt. Then brush on 1/2 the sweet & spicy sauce on top of the meatloaf. Place meatloaf and potatoes under the broiler for 5 minutes.
Top meatloaf with green onions, slice and serve alongside the crispy fingerling potatoes and the extra sauce on the side.