Preparation Steps
- To prep the burgers: In a medium bowl, toss in the ground meat, 1/2 teaspoon salt, 1/2 teaspoon pepper, and Worcestershire sauce.
- Mix together with a fork.
- Once the ingredients have been combined, form four patties.
- To prep the red onion: Brush olive oil on both sides of all the slices and then sprinkle with some salt and pepper.
- For the lemon garlic aioli: In a small bowl, mix all the ingredients together.
- Place back in refrigerator until burgers are cooked.
- To cook: Preheat grill to around 350.
- If using cast iron grates, use a paper towel or cloth to wipe all grates with canola oil.
- Place burger patties on grill.
- Close lid and prep the buns by brushing canola oil on insides.
- After a few minutes, check the patties.
If the bottom half looks just about cooked, roughly 3 minutes, flip over, and place cheese on top.
- Add red onions and buns (cut side down).
- Close lid.
After another 3 or so minutes, remove everything from grill.
The cheese wont be completely melted, because of the thickness, but its okay, thats the point ;-) The cheese will stay extra sharp if the inside isnt melted.
On the red onions, youre looking for good char marks on one side, but the onion still a bit crunchy.
For the buns, youre looking to get the bottoms nice and charred, but not so much as to make the bread tough.
- To assemble the burger: Place a handful of arugula leaves on the bottom slice of the bun.
- Place burger with cheese slice on top.
- Add the grilled red onions.
- Slather the aioli liberally on the top half of the bun.