Begin by placing the beef cocktail sausages in the bottom of a 6-quart slow cooker.
Pour the peperoncini juice over the sausages, ensuring they are well coated.
Sprinkle the au jus gravy mix evenly over the sausages, followed by the ranch seasoning mix.
Place the cubes of butter on top of the seasonings, then add the pepperoncini peppers for an extra kick.
Cover the slow cooker and set it to low. Cook for 2-3 hours, stirring occasionally to mix the flavors.
Once cooked, give it a final stir and serve warm.
Notes
For a milder flavor, you can reduce the number of pepperoncini peppers or omit them entirely. These smoky bites are perfect for parties or as a hearty snack!