Dan Walker has given fans a sweet glimpse into life at home as his family marked his eldest daughter Susanna's 14th birthday over the weekend.Taking to Instagram, the BBC Breakfast host shared a series of snaps - including a rare image of his teenager and some photos of her delicious-looking homemade birthday cake.MORE: Dan Walker jokes about having a 'marital tiff' with Louise Minchin after hilarious TV blunderWATCH: Dan Walker's hilarious attempt at TikTok dance"Happy Birthday to our amazing,