Prepare the Chocolate Filling: Start by melting the finely chopped chocolate in a double boiler or microwave, stirring until smooth. Set aside to cool slightly. This melted chocolate will form the decadent center of your donuts.

Make the Dough: In a medium bowl, whisk together the egg, water, and sugar until well combined. Gradually add the all-purpose flour, mixing until a smooth dough forms. The dough should be soft but not sticky, easy to handle without clinging to your hands.

Shape the Donuts: Divide the dough into equal portions. Flatten each portion in your hand and place a spoonful of the melted chocolate in the center. Carefully fold the dough over the chocolate, sealing the edges to encase the chocolate completely. Roll each piece into a smooth ball, ensuring the chocolate is fully enclosed.

Coat the Donuts: Roll each dough ball in the bread crumbs (Panko preferred) until fully coated. The breadcrumbs will give the donuts a delightful crunch when fried.

Fry the Donuts: Heat oil in a deep pan or fryer to around 350°F (175°C). Carefully lower the donuts into the hot oil, frying in batches to avoid overcrowding. Fry the donuts for about 2-3 minutes per side, or until they turn golden brown and crispy. Be sure to maintain the oil temperature to ensure even cooking.

Drain and Cool: Once fried, use a slotted spoon to remove the donuts from the oil and place them on a plate lined with paper towels to drain excess oil. Allow the donuts to cool slightly before serving.

Serve: Serve the fried chocolate donuts warm, allowing the gooey chocolate center to ooze out with each bite. These donuts are perfect on their own or paired with a scoop of vanilla ice cream for an extra indulgent treat.