These Roasted Garlic Parmesan Ribeye Steaks are reverse-seared until juicy and tender, then topped with a rich compound butter made with roasted garlic, Parmesan, shallots, lemon, and red pepper flakes.
Preheat the oven to 400°F. Cut the top off the garlic bulb to expose the cloves. Drizzle with a little canola oil and sprinkle with salt. Wrap in foil and roast for 1 hour.
Add the softened butter to a mixing bowl. Squeeze 4–6 roasted garlic cloves into the butter. Add the Parmesan, shallot, red pepper flakes, lemon juice, black pepper, and kosher salt. Mix until combined.
Shape the butter into a log using plastic wrap. Refrigerate for 1 hour, or until firm enough to slice.
Season the ribeye steaks with salt, coarse black pepper, and garlic powder.
Preheat the smoker to 250°F. Smoke the steaks for about 40 minutes, or until they reach an internal temperature of 115°F. If the steaks are 1 inch thick or less, the original recipe recommends skipping the reverse-sear method.
While the steaks smoke, bring a few cups of salted water to a boil. Add the petite potatoes and boil for 6–8 minutes. They should be tender but still firm enough to hold their shape.
Drain the potatoes and let them cool for about 30 minutes.
Remove the steaks from the smoker. Prepare the grill for high direct heat and place a plancha or flat griddle surface over the heat for the potatoes.
Sear the steaks for 60–90 seconds per side.
Transfer the steaks to a wire rack. Place about 2 tablespoons of the roasted garlic Parmesan butter on each steak and loosely cover with foil while they rest.
Place the potatoes on the hot plancha and smash them with the bottom of a pan or another flat, firm surface.
Cook the smashed potatoes for about 3 minutes, then flip. Add a small pat of roasted garlic Parmesan butter to each potato and continue cooking until crisp.
Slice the rested steaks and serve with the crispy smashed potatoes.