Unwrap mozzarella sticks from their wrappers.
Use one piece of bacon for each mozzarella stick. Wrap one end of the bacon over one end of the cheese stick. Use a toothpick to secure the bacon in place, pushing the toothpick straight through the bacon and into the center of the cheese.
Wrap the bacon around the cheese stick, overlapping each layer slightly until the bacon can be folded over the opposite end. Secure with another toothpick. A piece of bacon should completely cover the cheese stick. Set aside.
Continue wrapping all of the cheese sticks with bacon.
Place the bacon-wrapped cheese sticks in the freezer for at least 30 minutes.
Fill a skillet with 2 inches of cooking oil (vegetable oil) and heat over medium-high until the oil reaches 350°F.
Remove several cheese sticks from the freezer and add them directly to the heated oil.
Fry, flipping after a few minutes until the bacon is cooked to desired crispness.
Use a strainer to remove the fried mozzarella strip from the oil and place on paper towels or paper bags to absorb the extra oil.
Continue cooking the cheese sticks in batches until done.
Remove toothpicks before serving.