A delectable tale of love, friendship and cake...

Laurie loves a challenge. Especially if it involves tea-time and travel. So when British baking treasure Pamela Lambert-Leigh needs a guide on a research trip for her new cookbook, she jumps at the chance.

The brief:

Laurie and Pamela - along with Pamela's sassy mother and stroppy daughter - will board a vintage London bus for a deliciously unusual tour of the USA's East Coast, cruising from New York to Vermont.

Their mission:

To trade recipes for home-grown classics like Victoria Sponge and Battenburg for American favourites like Red Velvet Cake and Whoopie Pie.

All the women have their secrets and heartaches to heal. As well cupcakes galore, there's also the chance for romance...

But will making Whoopie lead to love?