Strawberry-flavored donuts are so underrated. There have always been donuts filled with lemon or raspberry jam, so why not strawberry? Krispy Kreme must have realized their oversight, because they ...

and plum jam being some of the most unique flavors. Italy's Bomboloni donut follows the same structure as a Bismarck, but is ...

Place the purée in a large saucepan and add the same weight in jam sugar (you may not need all 300g/10½oz of jam sugar). Heat gently until the sugar is melted. Add a knob of butter and increase ...