There are few things I love as much as a Sunday roast. And as Sundays are currently the only day I get off each week, it means I can lie in until at least eleven and drink bottomless cups of coffee before drooling over roast beef and Yorkshire puddings. Plus, alcohol is usually included. And by usually, I mean, always.

The only thing better than a Sunday roast, is Sunday roast with the girls. When the girls get together there’s never a dry eye in the house – generally because we’ve been laughing so hard we end up crying!

This weekend we opted for the Victorian-inspired restaurant Powder Keg Diplomacy on St John’s Hill in Clapham. I did a quick google the night before and found one review stating: “Who’s it for? Anyone up for a banging British booze-up south of the river.”

Right, I thought.

“Banging British booze-up” was not exactly what I had in mind for an afternoon of girlie gossiping whilst sipping on a rich and juicy large glass of red wine.

But the quirky urban colonial-style design fitted the lively ambience in the restaurant perfectly. You can opt to sit in the light and airy conservatory or underneath a huge world map painting – which is plastered on the ceiling, with odd gramophones and antiques doted around the room.

The wine list is extensive, so if you’re having trouble differentiating between a Pinot Noir from New Zealand and an Australian Black Shiraz, then you can always try the home-made ginger beer, which has quite a kick to it!

We all, somewhat boringly, opted for the Paley Farm Rosemary and Garlic Studded New Season Lamb with mint sauce (and all the trimmings) as we discussed everything from being an Auntie to first-dates, changing jobs to break-ups, holidays, sex and the latest fad-diets.

While it’s unlikely to be the cheapest meal you’ve ever eaten, the prices are fantastic value for money as the food is utterly divine and portion sizes are more than generous. Though, the varying sizes of the Yorkshire pudds were questionable. Sophie admits: “Although mine was adequate, others were larger, and ultimately size is everything in a Yorkshire pudding.”

True. Story.

My favourite part of the meal was, drum-roll please, the Sticky Toffee Pudding with gazed banana and caramel sauce. For those of you who know me, it’s probably not a surprise that dessert is my absolute favourite. I’d happily go out for three sweet, calorie-induced deserts over a three-course meal any day of the week!

If I had one slight criticism, it would be that the restaurant service was rather slow throughout. The waiters were both friendly and polite, just lacking in efficiency when it came to producing the bill.

Overall, it was a gorgeous lunch with my gorgeous girls and I would highly recommend it to anyone who’s looking for a new place to indulge in, south of the river.

Next time, brunch? Because who can say no to Eggs Benedict?

Powder Keg Diplomacy, 147 St Johns Hill, SW11 1TQ. 0207 450 6457.