This seedless raspberry jam is a vibrant, velvety spread that captures the pure essence of summer fruit by using a fine-mesh sieve to strain out every pip, leaving behind a luxuriously smooth texture. To make it, you'll simmer the berries in a large heavy-based saucepan, pressing the pulp through the mesh with a wooden spoon before boiling the liquid with sugar and lemon juice until it reaches a glossy set. You can easily check the consistency using a chilled saucer from the freezer, then use a ladle or funnel to cleanly transfer the finished preserve into sterilised glass jars for a perfect, professional finish.

Mash the raspberries in a large pan over low heat until they are soft and pulpy.
Pour the pulp into a fine-mesh sieve over a bowl or back into the pan. Use the back of a spoon to press the pulp through, leaving only the seeds behind.
Put the seedless puree back into the pan (if removed), add the sugar and lemon juice. Stir over low heat until the sugar is fully dissolved.
Increase heat to high and bring to a rolling boil for about 5–7 minutes.
Drizzle a little jam on a chilled saucer (put a saucer in the freezer first). If it forms a skin/crinkle when pushed with your finger, it is ready.
Pour into sterilised jars and seal.