Heat a frying pan over medium heat. Once hot, add the peanuts and toast until fragrant, 3 to 5 minutes. Take off the heat and set aside for now.
To the same pan, add the oil. Once hot, add the chile peppers. Cook for 60 to 90 seconds, then transfer to a bowl to stop cooking.
Use a knife to mince the peanuts. Add the peanuts to the chile peppers and toss to combine. Add a few dashes of soy sauce, a few cracks of black pepper, and toss again. Season to taste with salt as needed.