Chocolate con churros and other foods you need to eat in Madrid, Spain

Madrid. It was the final stop on my Spanish jaunt last year and I couldn't wait. Tapas, deep fried calamari and piping hot churros dipped into thick hot chocolate would all be mine. I had a checklist of things I wanted to eat and I was determined to tick off as many as possible. Flying to Madrid from Santiago de Compostela would only take an hour, but I decided to take the train, a scenic route