4 cups water, 1/4 cup salt, 2 tablespoons sugar, 10 whole peppercorns, 3 cloves smashed garlic, and the peel of half a lemon. Bring the mixture to a boil, let it cool, and then submerge the chicken breasts in the solution overnight. In the morning, remove the chicken and let it air dry in the fridge for at least one hour before cooking.
Don't worry too much about the measurement. Just cover both sides with spices per your like.