It's citrus season. Time for making marmalade from lovely  bitter Seville Oranges, for enjoying pink Cara Caras and red Blood Oranges cut into salads and roasted with poultry or veggies. Such a wonderful fresh pop of color on these dark winter days! 
Here's a simple marmalade recipe from CERTO UK: marmalade recipe

citrus season seville oranges for marmalade cut special oranges cut