Raspberry Jam

When I was growing up, my father kept a big garden where raspberries grew particularly well. We were never short of them, to eat with sugar and cream, to top meringues or tarts, or to make jam. Like strawberry jam, raspberry jam is almost laughably simple: berries, sugar, a squeeze of lemon. The only difficulty—and you may not consider it a problem—is that it’s so full of seeds. I don’t like raspberry jam completely seedless, but I do like it a little less seedy, so I strain half the jam th