1. Prepare churros dough: pour the water into a medium sized saucepan, add 1 tablespoon of oil, salt and bring to a boil.2. Once the water boils, remove from heat, add flour and stir until smooth dough forms. If needed transfer the dough to a lightly oiled surface and knead until smooth.3. Transfer the dough into a churrera or double piping bag fitted with a star tip. Set aside while oil heats.4. Prepare the coating: in a shallow bowl, combine sugar and cinnamon. Set aside.5. Prepare chocolate sauce for churros: chop dark chocolate, transfer to a large bowl. In a small sauce pan heat heavy cream, pour over the chocolate. Let sit for 1-2 minutes. Stir until smooth and thick. Transfer to a mug or small bowl.6. Fry the churros: Heat oil for frying in a Dutch-oven or deep skillet to 350F (180C). Pipe strips of dough into hot oil using a pastry bag. Fry in batches (4-5 churros at the time) until golden; drain on paper towels.7. Roll the churros in the sugar-cinnamon mixture and serve immediately.Notes:
Make sure you are using two 2 Piping bags (1 in each other), or a piping bag that is made of not made of thin plastic, otherwise it can tear.