shake · egg emulsion
★ STARRED KITCHENPrep 5 minReuben Mustard Mayonnaise
Independent adaptation of a publicly published Paul Welburn recipe. Not affiliated with, sponsored by, or endorsed by Paul Welburn.
SPREAD · SANDWICHES & CANAPÉS
In the published recipe, this is the spread for Reuben crispbread canapés.
Welburn's mustard mayonnaise for Reuben canapés.
Ratio
Ingredients
- Dry Mustard40 g
- Mayoabout 1¼ cups (316 ml)
- Saltsalt to taste
Method
- Pour to the lines in order (bottom → top): MAYO.
- Shake-to-line (dashed marks): add DRY MUSTARD. Spoon in, shake, and top up until the settled level reaches each dashed line.
- Season to finish: SALT (to taste).
- Cap the jar and shake until emulsified.
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It breaks. The shake fixes it.
You found this recipe once. On a PantryFlex jar it's printed in glass. If it separates in the fridge, cap it and shake; the ratio is already right, it just needs remixing.
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Provenance
Paul Welburn — published sauce recipes in the PantryFlex catalog. Michelin 1* (Rhodes W1 / The Oxford Kitchen, historical as head chef).
More from this kitchenFAQ
Can this go in a shake jar?
Yes. Its liquids pour to printed fill-lines, so it can be one of the sauces on a PantryFlex jar.
What do the quantities mean?
This page lists the published recipe in household units (with metric in parentheses). A PantryFlex jar makes a 0.75× batch of it. The jar's printed lines, counts, and QR guide are already scaled to match, so follow the jar or this page, not a mix of both. Amounts in the jar’s ADD row are rounded to the nearest common spoon measure (T = tablespoon, t = teaspoon) so they can be read off the glass.
Where did this recipe come from?
Adapted from Paul Welburn / Peter's Yard (Reuben crispbread canapés) (published as “Reuben Mustard Mayonnaise”). Full citation lives in Provenance.