Grate the garlic into a small bowl. Whisk together with the egg yolk.
Slowly drizzle in the olive oil a little at a time, whisking vigorously. Whisk until all the olive oil is emulsified with the mixture. Stir in the lemon juice and set aside.
Grilled Chicken Burgers
Preheat the grill to high heat. Crumble the gorgonzola into a large bowl. Combine with the ground chicken, parsley, and breadcrumbs.
Prepare the ground chicken mix by forming them into patties. They should feel pretty sticky. Sprinkle them with salt and pepper.
Lower the grill heat to medium. Place your burgers on the grill and grill each side for 3-5 minutes. Use an instant read thermometer and remove the burgers when the temperature reaches 165 degrees F.
Let the burgers rest for 5 minutes. Place the burgers on buns with some greens, like a spring mix. Top with the aioli and serve.
Video
Notes
Always use a block of gorgonzola over crumbles. Crumbles have an anti-caking agent that make it hard for the gorgonzola to seep through the burgers as they cook.
When making the aioli, whisk vigorously. If you physically can't, use a food processor.
Don't rely on time to cook the burgers. Rely on temperature. It's more accurate and will result in a moist and tender burger.