Buffalo (or Beef) Burger

Ingredients

• 1 tablespoon vegetable oil
• 1 onion, diced
• 1 egg
• 2 teaspoons chopped fresh thyme or rosemary or oregano (or 1/2 tsp/2 mL dried)
• 2 teaspoons Dijon mustard
• 2 teaspoons prepared horseradish
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• 8 ounces medium ground beef
• 8 ounces ground buffalo meat
• 4 kaiser rolls or hamburger buns
• 4 leaves lettuce
• 1 tomato, sliced
• 1/2 small red onion, thinly sliced

Directions

1. 1

   In skillet, heat oil over medium heat; fry diced onion, stirring occasionally, until softened, about 5 minutes.

2. 2

   Let cool.

3. 3

   In large bowl, beat egg.

4. 4

   Stir in thyme, mustard, horseradish, salt and pepper; mix in onion, beef and buffalo.

5. 5

   Shape into four 1/2-inch (1 cm) thick patties.

6. 6

   (Make-ahead: Cover and refrigerate for up to 6 hours. Or layer between waxed paper in airtight container and freeze for up to 1 month; thaw in refrigerator.) Place patties on greased grill over medium-high heat; close lid and cook, turning once, until no longer pink inside, about 10 minutes.

7. 7

   Cut rolls in half; place, cut sides down, on grill and toast until golden, 1 to 2 minutes.

8. 8

   Layer burgers, lettuce, tomato then onion on bottoms; sandwich with tops.