No flour is needed. Check the Worcestershire sauce and remaining packaged ingredients. This is a fresh sauce for the refrigerator, not a recipe for home canning. Finished volume and portion size need to be measured before nutrition can be calculated.

Check the exact products you buy, especially flour, oats, bread, pasta, sauces and broth. Gluten-free labeling and third-party certification are different. A recipe page or scanner cannot guarantee a dish’s preparation. Use clean equipment and protect ingredients from contact with gluten-containing foods. Gluten-free does not mean free of dairy, eggs, nuts or other allergens. See the FDA guide to gluten-free labels.

Use a food thermometer and the safe cooking temperature chart. Refrigerate perishable food within two hours, or one hour above 90°F, in shallow containers as appropriate. Keep the refrigerator at 40°F or below. Use refrigerated cooked leftovers within 3–4 days; reheat cooked leftovers to 165°F. See USDA leftover guidance.

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Refrigerate the cooled sauce in a covered container and use within 3 to 4 days, or freeze for up to 3 months. This is a refrigerator sauce, not a recipe for home canning.