There's a particular kind of domestic humiliation in realising you've been throwing away the most useful inch of every jar in your kitchen. Rachel Roddy's newsletter opens with fallen cupboards and a fridge colonised by near-empty containers — three jars of honey, two of peanut butter, one ghost of chocolate spread — and turns that chaos into a coherent argument: the residue is the starting point, not the embarrassment. The honey jar move is the sharpest of the bunch, and not just because it's useful. Adding a little boiling water and acid (lemon juice, red-wine vinegar, whatever's to hand), screwing the lid back on, and shaking hard converts something most people would rinse down the sink into a fully emulsified dressing base. It works on red-white cabbage slaw with grated carrot, or on a more ambitious radicchio-hazelnut-gorgonzola plate. The instruction to invert the method for a mustard jar is a small, precise piece of kitchen logic that sticks. Felicity Cloake's honey hot toddy and Fuchsia Dunlop's spicy peanut butter noodles are cited not as recipes to look up but as techniques to absorb. Dunlop's method — lifting hot noodle water into the peanut butter jar, shaking to a thick paste, then adding chilli oil, sesame oil, and minced garlic for a sauce 'the consistency of single cream' — is the kind of cooking that happens in restaurants and almost never gets written down. It deserves a wider audience. The peanut-butter-as-pesto move is where the piece earns its keep. The Italian friend's eye-roll is a useful corrective: pesto means a pounded paste, not a specific recipe, and the insistence on basil-pine nut-parmesan as the only legitimate form is an imported food-media convention, not culinary fact. Blending herbs, garlic, and olive oil, then shaking peanut butter paste from a near-empty jar into the mix with pasta water and grana padano, works. The wilted baby spinach added at the end is a good detail — it does something, it isn't decorative. The newsletter's final movement covers jam jars (loosened with water for a glaze on roast vegetables or pork, or for the base of a jam tart using Dan Lepard's shortcrust), and the chocolate spread jar turned into a rum-hot-chocolate drink. Each instruction is tight, specific, and immediately actionable. The column's strength is that it doesn't aestheticise frugality — it treats the constraint as a design problem and solves it practically. The 'My Week in Food' section appended at the end covers Paola Gavin's cookbook, Wong Kei in London's Chinatown, and chef Fatmata Binta's advocacy for fonio — brief, warm, and pointed enough to be useful.