Classic Spanish Style Churros with Cinnamon Sugar

Ingredients

• 1 cup water
• 2 ½ tbsp unsalted butter
• 2 tbsp granulated sugar
• ¼ tsp salt
• 1 cup all-purpose flour
• 1 large egg
• ½ tsp vanilla extract
• 2 cups vegetable oil
• ½ cup granulated sugar
• 1 tsp ground cinnamon
• ½ cup heavy cream
• 3.5 oz dark chocolate, chopped
• 1 tbsp unsalted butter
• 1 tbsp granulated sugar
• Pinch of salt