Special equipment: a large saute pan or a double-burner griddle
Heat the oil in a medium saute pan over medium-high heat. Add the andouille, celery, red onion and Fresno chile and cook until softened and any liquid is evaporated, 8 to 10 minutes. Add the garlic and seafood seasoning. Cook until the garlic is cooked through and the seafood seasoning toasts slightly, about 2 minutes. Add the white wine and cook until the wine is completely reduced, 4 to 6 minutes. Remove from the heat and set aside to cool completely, about 10 minutes.
Beat the eggs in a large mixing bowl. Add the crabmeat, breadcrumbs and cooled andouille mixture. Toss to combine; the mixture should hold together when you squeeze it. Using a 1/4 cup measure, form the crab mixture into crab cakes using the size of your slider bun as a guide for width. Transfer the formed cakes to a baking sheet. Refrigerate the crab cakes 1 hour.
In a large saute pan or on a double-burner griddle, toast the slider buns until golden brown, 2 to 3 minutes. In the same pan, melt 2 tablespoons of the butter. Working in batches, cook the crab cakes until golden brown and crisp on both sides, about 2 minutes per side, adding more butter as needed.
Serve each crab cake on a toasted slider bun topped with the Coleslaw.
Whisk together the mayonnaise, sour cream, vinegar, seafood seasoning and 1/4 teaspoon salt in a large bowl. Add the coleslaw mix and corn and toss to combine. Season with salt and pepper. Cover with plastic wrap and refrigerate until ready to serve.