"We stopped in Grantham feeling hungry on a Sunday morning during a long drive up the A1 and struggled to find any open restaurants. Then we saw COSY CORNER CAFE, which didn't look very impressive from the outside but had an Open sign in the window. The 1950s boarding house decor may not have been appealing, but it had a cozy and unpretentious vibe. The tables and chairs were sturdy and not crowded. A few other customers were already inside, but they didn't give us any strange looks or mutterings. The waitress, who appeared from another room, was quick to take our order and very friendly. We mainly stopped in to use the restroom and grab a cup of tea, but decided to take a chance on the food. And it was definitely worth it. I ordered a full English breakfast, which was reasonably priced at around £6 including extra toast. The menu offered traditional British dishes and welcomed substitutions. My wife initially wasn't planning to eat, but after seeing another customer enjoying a roast dinner at 10.30am, she decided to order one as well. The roast beef was perfectly cooked and served with roast potatoes, mashed potatoes, Yorkshire pudding, carrots, and leeks for £6. We enjoyed a large pot of tea, which was promptly refilled upon request. The reason I am sharing this review on Tripadvisor is because this meal was truly one of the best I've ever had outside of my own home. The food was top-notch, with quality ingredients, well-prepared and presented, and served with genuine hospitality. It's evident that this cafe is a family-run business, which is reflected in the exceptional food and service. I will definitely be making a point to stop at Grantham on my next drive down the A1."