Napa Valley Burger

From Bobby Flay's Burgers, Fries, and Shakes, page 52.

Serves 4.

This burger is very tart and tangy because of the citrus and the goat cheese.  It has a very fresh flavor.

Meyer Lemon-honey Mustard:
1/4 cup Dijon mustard
1 heaping Tbs. clover honey
1 1/2 tsp. grated Meyer lemon zest, or 1 tsp. grated orange zest and 1/2 tsp. grated lemon zest
1 1/2 Tbs. Meyer lemon juice, or 1 Tbs. fresh orange juice and 1 tsp. fresh lemon juice
Kosher salt and freshly ground black pepper

Whisk together the mustard, honey, lemon zest, and lemon juice and season with salt and pepper.  Cover and refrigerate for at least 30 minutes or up to 24 hours before serving to allow the flavors to meld.

Burgers:
1 1/2 lbs. ground chuck (80/20) or ground turkey (90/10)
Kosher salt and freshly ground black pepper
1 1/2 Tbs. canola oil
8 round slices fresh goat cheese, each 1/2" thick
4 sesame seed hamburger buns, split; toasted, if desired
1 handful of watercress

Divide the meat into 4 equal portions.  Form each portion loosely into a 3/4" thick burger and make a deep depression in the center with your thumb.  Season both sides of each burger with salt and pepper.

Cook the burgers (click HERE for Bobby's burger cooking times), using the canola oil and topping each one with 2 slices of cheese and a basting cover during the last minute of cooking.

Place the burgers on the bun bottoms, drizzle with some of the Meyer lemon-honey mustard, and top with watercress.  Cover with the bun tops and serve immediately.

Notes:
- Meyer lemons are sweeter than regular lemons, which is why the substitutions are a mixture of orange and lemon juice.
- We only used half the amount of goat cheese.
- I feel so repetitive: I typically buy 90/10 ground beef, so I use a pound of that for my burgers.