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Use home-style white bread homemade, if possible. Remove any crusts from the bread. Flatten each slice of bread with a rolling pin. In a bowl, combine ricotta cheese, chocolate chips, powdered sugar, and orange zest. Spread a tablespoon of filling over each slice of bread. Stop 1/2 in (1.3 cm) from the edge and 1 in (2.5 cm) from the top. Roll the slice from the bottom to the top. Place a skillet over medium heat. Melt a tablespoon of butter until it's sizzling. In a shallow bowl, whisk together milk, eggs, and cinnamon. Cook each coated bread roll, turning it occasionally, until all sides are lightly browned about three minutes. Wipe the skillet carefully with a damp cloth or paper towel in between each batch. Use a tablespoon (15 g) of butter for each batch. Sprinkle the tops of the rollups with powdered sugar, if desired. Add fresh fruit, such as strawberries or cherries, to each plate.
Slice and flatten bread. Mix the filling ingredients together. Fill and roll each bread slice. Preheat a skillet while you prepare the batter. Dip and cook each bread roll. Serve the rollups.