Homemade aioli: In a bowl, add in the egg yolk, mustard, grated garlic, vinegar and whisk to combine. While whisking, drizzle in the neutral oil until your sauce becomes thick and emulsified. Add in the parsley, parmesan and salt, adjust to taste.
Bacon: Preheat your oven to 180C/350F. Place the rashers of bacon on a lined baking tray and bake the bacon until golden and crispy.
Breaded chicken: Slice your chicken breast into 2 pieces length-wise. While working with 1 piece at a time, cover the chicken with a piece of plastic wrap and using a meat tenderiser, flatten out the chicken into a thin even piece. Repeat with the other piece. Season the chicken with salt and pepp.
Add your breadcrumbs onto a plate and mix in the parsley, onion powder and garlic powder. Prepare your breading station. Working with 1 piece of chicken at a time, place the chicken into your flour and cover it well. Transfer the chicken to your beaten eggs and cover it well. Transfer the chicken to your seasoned breadcrumbs and press it in well. Repeat with the 2nd piece.
Bring a pot of oil to frying temperature (180C/ 350F). Carefully drop in 1 piece of breaded chicken at a time and fry for 4-6 minutes, depending on the thickness of the chicken and flipping halfway, or until golden brown. Place on a wire rack to drain.
Assemble: On 1 piece of toasted bread, spread on a layer of the homemade aioli, then top with a piece of chicken. Place 4 rashers of bacon on each sandwich then break apart a burrata on top. Top with tomato slices, salt, lettuce and close the sandwich. Enjoy!