Tucked between recipes for "Rich Puff Paste" and "A Raised Crust for Custards" in William Carter's slim, sixpenny cookbook from 1800 sits a small culinary time capsule — a pastry recipe that would not look out of place in a modern coeliac cookbook:

Rice Paste, for Fruits, Sweets. Boil a quarter of a pound of ground rice in the smallest quantity of water, strain from it all the moisture you can, beat it with half an ounce of butter and one egg well beaten, and it will form an excellent paste for tarts, &c.

That is it. Four ingredients, no wheat, no rye, no barley. A functional pie crust made entirely of ground rice, butter, and egg — offered without fanfare or explanation, as though every English housewife in 1800 might reasonably want one on a Tuesday.

Carter's Cook and Confectioner's Guide, printed in Ipswich by J. Scoggins for the local bookseller William Carter, was a working-class kitchen manual — cheap enough at sixpence to sit on a cottage shelf. It made no grand claims. It was the kind of book that gets used until the pages fall out, which is likely why so few copies survive. This one was rescued by the University of Leeds's John F. Preston Collection of Cookery Books and digitized in 2015.

What makes the Rice Paste recipe extraordinary is the historical vacuum in which it sits. In 1800:

• The word gluten existed as a vague chemistry term, but its structural role in dough was barely understood.
• Coeliac disease had been described in antiquity by Aretaeus of Cappadocia, then essentially forgotten. Samuel Gee would not publish his landmark modern description until 1888.
• The link between wheat and coeliac symptoms would not be established until 1952, by Dutch pediatrician Willem-Karel Dicke, after observing that children improved during WWII wheat shortages.

So why did Carter include it? Almost certainly not for medical reasons. Rice was expensive but available; wheat harvests failed periodically; and a paste that could be prepared quickly from a shelf-stable grain was simply useful. The recipe is a reminder that our ancestors' pantries were more diverse than we imagine — they cooked with what they had, and their techniques often anticipate, by pure practical accident, the "innovations" of a later century.

A modern cook trying the recipe will notice it works differently than wheat pastry: without gluten's stretchy network, the dough is more like a shortbread — crumbly, tender, prone to cracking. This is exactly the texture you get from a $14 bag of gluten-free flour blend at Whole Foods. Carter got there with a pot, some water, and a wooden spoon.

The next time you see a "modern" gluten-free crust recipe, remember: an anonymous Ipswich housewife was making one 226 years ago, and thought so little of it that it warranted only three sentences.