Their Welsh Rarebit wasn't what I expected.  More like a melted cheese sandwich.  But I'm not going to challenge Fortnum and Mason as to the makings of a proper Welsh Rarebit.  Their version comes on cheddar bread, topped with back bacon, a grilled tomato on the side.

The Fountain is one of F&M's three restaurants, the most like a tea room.  In fact they are noted for their afternoon teas.  Also their ice cream sundaes.  I went for their Patio Nut sundae, super smooth and rich, intensely flavored coffee ice cream with caramel sauce and toasted almonds.

To drink, organic ginger beer from the Belvoir Fruit Farms.  Worth a return to London just for another bottle.