Season chicken breasts with salt and pepper.
In a bowl, mix minced garlic, lemon juice, sugar, and all-purpose flour to make a paste.
Coat seasoned chicken breasts with the garlic paste mixture.
Heat cooking oil in a pan and sear the chicken breasts until browned on both sides.
In the same pan, add butter, sprinkle flour, oregano, chicken broth, salt, and pepper.
Cook until the sauce thickens and the chicken is cooked through.
Serve the lemon garlic chicken garnished with coriander or herbs.