Hamburgers with Scallion & Tomato-Tarragon Sauce

June 29th, 2017
Ingredients
  • 2 tablespoons EVOO
  • Extra Virgin Olive Oil
  • 2 pints cherry tomatoes
  • 4 cloves garlic, sliced
  • Salt and pepper
  • 1 tablespoon sherry or balsamic vinegar
  • 1 bunch scallions, finely chopped, greens and whites separated
  • 1/4 cup tarragon, coarsely chopped
  • 1 1/2 pounds lean ground beef
  • 1 rounded tablespoon Dijon mustard
  • 8 thin slices fresh mozzarella or mild provolone
  • Soft sesame seed buns
  • Leaf lettuce
Instructions
  1. Heat oil in a pan over medium-high heat. Add cherry tomatoes and garlic, shake pan and season with salt and pepper. Cover and shake pan occasionally until tomatoes begin to burst. Uncover and mash tomatoes; let thicken. Add vinegar, scallion greens and tarragon, and remove from heat.
  2. Preheat a cast-iron skillet over medium-high heat.
  3. Combine meat with scallion whites, salt, pepper, Dijon and drizzle of olive oil. Form four patties that are thinner at the center for even cooking. Cook patties 8 minutes turning once. Top with cheese in last minute or so, cover with foil tent to melt.
  4. Place lettuce, a burger patty and some burst tomato sauce on roll bottoms and set tops in place.