In a food processor, combine the onion, garlic cloves, ginger, tomato paste, jalapenos (if you have any), cayenne powder and chili powder. Process together well and gradually add in your oil until you have a thickened paste forming
Once you have your paste, pour it over your meat in a large bowl. Mix the marinade in well with the beef, then refrigerate and let sit for at least 1 hour. Of course, though, the longer you can let it sit, the better
Next, submerge your skewers in water and let sit
Stage 2 - Prepare Tankora Powder
In a small saucepan, add your dried corn kernels in over a medium heat. Note: don't add any oil or anything.. just the kernels themselves straight up
Keep over medium heat, periodically jostling around, until the kernels start to brown and give off a fragrance. As they brown, they start to become roasted, which is exactly what you want.
Take the saucepan off heat and pour your roasted corn kernels into a food processor with your peanuts and all the remaining ingredients for the tankora powder
Pulse the ingredients together until everything is broken up into a nice, crumby texture. Don't over-process here, otherwise you'll end up with flavored peanut butter!
Stage 3 - Prepare Rest of Kabob Ingredients (Optional)
In case you are adding other ingredients to your skewers, a few minutes before you're ready to remove and dredge your meat would be a perfect time to prepare the remaining ingredients
Stage 4 - Covering Meat in Tankora
Create a small workstation with your bowl of marinated meat and a flat plate with your tankora powder spread evenly over the plate's surface
Take each piece of meat and dredge in the tankora powder until all its surface area is covered. Repeat until all your meat is covered
Stage 5 - Prepare and Cook Your Kyinkyinga
Preheat your grill or your oven to 350 degrees Fahrenheit
Remove your skewers from the soaking water and shake dry
Assemble your kyinkyinga on the skewers, alternating between the meat and other ingredients you have for your skewers. Repeat until all your meat and other ingredients are gone
(Optional, but recommended if grilling) Using some extra oil, lightly brush one side of your skewers before you prepare to put them on the grill
If using a grill: place your skewers on the grill, allowing to cook for 2 minutes on each side. As it cooks, lightly oil the other side. If using an oven: place in oven and let cook for at least 20 minutes or until it reaches your desired of doneness
Take off the grill and repeat for all your skewers until all your kyinkyinga are cooked. Enjoy!
Recipe by Arousing Appetites: Home to the Serious Cook at https://blog.arousingappetites.com/kyinkyinga-ghanaian-groundnut-beef-skewers/