Gumbo Burgers With Roux Ketchup

• 3 tablespoons salted butter
• 3 tablespoons all-purpose flour
• 2 cups unsalted chicken stock
• 3 tablespoons refrigerated tomato paste (from tube)
• 2 teaspoons red wine vinegar
• 1 teaspoon hot sauce (such as Tabasco or Crystal)
• 1/2 teaspoon kosher salt
• 2 tablespoons salted butter
• 1 cup chopped onion (from 1 4 1/2-oz. onion)
• 1/2 cup chopped celery (from 2 stalks)
• 1/2 cup chopped green bell pepper (from 1 6-oz. pepper)
• 12 ounces medium-size peeled, deveined raw shrimp
• 3 ounces chopped andouille sausage
• 1 1/2 cups cooked white rice
• 1/2 cup chopped scallions (from 2 scallions)
• 1 1/2 teaspoons creole seasoning
• 1 1/2 teaspoons file powder
• 2 tablespoons canola oil
• 4 onion rolls, split and toasted
• 8 pickled okra spears, split lengthwise

1. Prepare the Ketchup: Cook butter and flour in a small saucepan over medium, whisking constantly, until smooth, about 3 minutes. Continue cooking, whisking often, until very mixture turns the color of milk chocolate, 10 to 12 minutes. Carefully pour in stock (mixture will boil rapidly); whisk in tomato paste until smooth, about 1 minute. Bring to a boil over high; reduce heat to medium, and simmer, stirring occasionally, until reduced by about half, 15 to 20 minutes. Remove from heat; stir in vinegar, hot sauce, and salt. Let cool to room temperature, about 10 minutes.
2. Meanwhile, prepare the Patties: Melt butter in a large skillet over medium-high. Add onion, celery, and bell pepper; cook, stirring occasionally, until softened, 7 to 8 minutes. Transfer mixture to refrigerator; chill 5 minutes.
3. Transfer onion mixture to a food processor; add shrimp, sausage, rice, scallions, creole seasoning, and file powder. Pulse until finely chopped, 25 to 30 times. Shape mixture evenly into 4 (3/4-inch-thick, or 7 1/4 oz.) patties.
4. Heat oil in a large nonstick skillet over medium. Add patties; cook until cooked through, 6 to 8 minutes per side
5. Assemble the burgers: Spread 1 tablespoon Ketchup on each top and bottom bun half. Top each bottom half with 1 Patty and 4 okra pieces. Top with top bun halves.

butter, allpurpose, chicken, tomato, red wine vinegar, hot sauce, kosher salt, butter, onion, celery, green bell pepper, shrimp, andouille sausage, white rice, scallions, creole seasoning, filue powder, canola oil, onion rolls, okra

Taken from www.myrecipes.com/recipe/gumbo-burgers-roux-ketchup (may not work)