By Catherine McQueen Restaurant of the Month The Capital’s best restaurant picks reviewed each month. Name: Boyd’s Bar & Brasserie Location: 8 Northumberland Avenue, London, WC2N 5BY. Boyd’s Bar & Brasserie is certainly a welcome throwback to the days of former grandeur. Set in the Northumberland building on the Strand, the hotel-style brasserie is all about marbled walls, crisp white tablecloths, dripping chandeliers, and a mirrored bar. The menu is also impressive, with French and British classics both making appearances; Chelsea monthly tip? Tis the season to be merry... Try...