Prepare the Pastry Dough: In a mixing bowl, combine all-purpose flour, softened butter, egg, sugar, and a pinch of salt. Gradually add cold water until a dough forms. Knead until smooth for about 5 minutes.

Roll and Cut the Dough: On a floured surface, roll out the dough to about 1/8 inch thick. Use a circular cutter or a knife to cut into small circles or rectangles, approximately 3-4 inches in diameter.

Fry the Pastry Shells: Heat vegetable oil in a deep pan over medium-high heat. Carefully add the dough pieces, frying until golden brown, about 1-2 minutes per side. Drain on paper towels to absorb excess oil.

Prepare the Ricotta Filling: In a bowl, beat the ricotta cheese, powdered sugar, vanilla extract, and a pinch of cinnamon until smooth and creamy. Mix well until it reaches a uniform texture.

Assemble the Mini Cannoli Bites: Using a piping bag or spoon, fill each cooled pastry shell with the ricotta mixture. Be careful not to overfill to avoid spillage!

Serve: Arrange the filled Mini Cannoli Bites on a serving platter. Garnish with mini chocolate chips, chopped nuts, and a light dusting of powdered sugar for an appealing presentation before serving.