Preheat your Blackstone griddle to medium-high heat. In a small saucepan, combine ketchup, black cherry jam, vinegar, smoked paprika, garlic powder, onion powder, ground thyme, and a pinch of Blackstone S.P.G. Seasoning. Mix well and cook on the griddle for 4-5 minutes or until it simmers. Remove from heat and set aside.
Add Country Crock Drizzle & Sizzle to the griddle, then add mushrooms and onions. Season with a pinch of Blackstone S.P.G. Seasoning and toss. Cook for 5-6 minutes, stirring often.
Form the ground beef into 4 balls and place them on the griddle. Using parchment paper and a burger smasher, flatten the patties and season with Blackstone S.P.G. Seasoning. Cook for 1-2 minutes per side.
When the burgers are cooked through, top each with some of the mushrooms and onions, followed by a slice of Swiss cheese. Cover with a dome to melt the cheese.
Toast the buns with some Country Crock Drizzle & Sizzle on the griddle.
To assemble, spread some black cherry BBQ sauce on the bottom half of each bun, then add shredded lettuce. Place the burger on top and add more BBQ sauce on the top bun.
