AUTUMN is upon us, and so are new seasonal drinks menus. Costa’s Maple Hazel Latte, Starbucks’ Pumpkin Spice Latte and Greggs’ Caramel Hot Chocolate are all landing in stores now. But you can make your own versions for far less. Here’s how. MAPLE HAZE: Costa’s Maple Hazel Latte is back, layering roasted hazelnut syrup with...