Take about 1½ tablespoons of the ground chicken and form it into a ball. Flatten the ball in your palm and place a butter ball in the middle. Wrap the chicken around it, shaping it into a ball. Ensure the butter is well sealed with the chicken to prevent butter leakage when cooking.
Repeat this step with the remaining cheese balls. Place them on the baking paper.
Prepare the breading ingredients: In a shallow bowl, beat the eggs with a little salt. Add the Panko breadcrumbs to a flat plate or shallow bowl. On a third flat plate, add the flour.
Roll all the balls in flour, shaking off the excess.
Dip each floured chicken ball into the egg mixture coating well.
Roll each chicken ball in the panko crumbs, ensuring they are well covered.
Once all the balls are covered, return them to the freezer for another 15 minutes to firm the chicken up around the butter ball and set the butter again. This will prevent any butter leakage.
Heat oil in a large, deep pan or a deep saucepan. You need enough oil to cover the balls, and you want the oil temperature to reach around 350F.
Reduce the heat a little so they cook through without burning and carefully place the balls in batches of 5-6, and cook, turning frequently, until golden brown – about 5-6 minutes. Remove with a slotted spoon to drain the oil.
Allow the balls to rest a little so the chicken retains its juiciness and the butter doesn't burn your mouth. Serve them hot or warm. You can serve these at room temperature, but they won't be as nice if they are too cold, as the garlic butter center will solidify too much.