Step 1: Prepare the Cheesecake

1. If Using Store-Bought Cheesecake: Skip to step 2.
2. If Making Homemade Cheesecake: Preheat your oven to 325°F (160°C). In a medium bowl, beat the softened cream cheese and sugar until smooth. Add the egg, vanilla extract, and flour (if using) and beat until combined. Pour the mixture into a pre-made graham cracker crust and bake for 35-40 minutes, or until the center is set. Let the cheesecake cool completely, then chill in the refrigerator for at least 4 hours or overnight.

Step 2: Slice the Cheesecake

1. Once the cheesecake is fully chilled, use a sharp knife to slice it into 12 small rectangles or squares (about 2 inches each). For cleaner cuts, wipe the knife with a warm, damp cloth between slices.
2. Place the cheesecake pieces on a baking sheet lined with parchment paper and freeze them for 1-2 hours. Freezing prevents the cheesecake from melting during frying.

Step 3: Make the Batter

1. In a medium mixing bowl, whisk together the flour, baking powder, salt, and sugar.
2. In a separate small bowl, whisk together the milk, egg, and vanilla extract.
3. Gradually pour the wet ingredients into the dry ingredients, whisking until a smooth, thick batter forms.

Step 4: Heat the Oil

1. Pour vegetable or canola oil into a large, heavy-bottomed pot or deep fryer, filling it about 2 inches deep. Heat the oil to 350°F (175°C) using a deep-fry thermometer to maintain an accurate temperature.

Step 5: Coat and Fry the Cheesecake

1. Remove the frozen cheesecake pieces from the freezer. Dip each piece into the batter, ensuring it is fully coated. Let any excess batter drip off.
2. Carefully lower the coated cheesecake pieces into the hot oil using a slotted spoon or tongs. Fry in small batches to avoid overcrowding the pot.
3. Fry for 2-3 minutes, turning occasionally, until the batter is golden brown and crispy.
4. Remove the fried cheesecake pieces from the oil and place them on a plate lined with paper towels to drain excess oil.

Step 6: Garnish and Serve

1. Dust the deep-fried cheesecake with powdered sugar.
2. Drizzle with chocolate sauce, caramel sauce, or any toppings of your choice.
3. Serve warm with whipped cream, fresh berries, or a scoop of vanilla ice cream for an over-the-top dessert experience.