The products are likely to be the start of a bigger push into chilled in 2007, according to commercial director John Hendy. Future products could include chilled versions of the company's frozen desserts.
"There is an opportunity in the chilled arena to test these products and if they are a success we will be looking at further innovations," he said.
The dairy custard is produced under licence by Kerry Foods and comes in two carton sizes - a 474g pack with a 68p price tag and a 950g pack for £1.18. The Yorkshire pudding batter is available in a 400g resealable carton (rsp: £1.99).
Hendy said it had been a long-term objective of brand owner Tryton Foods to expand its Yorkshire puddings into the chiller cabinet, and it was confident that the new product would not cannibalise sales of its frozen versions.
"A lot of housewives make their own Yorkshire puddings and the chilled product is clearly targeted at getting these home bakers into the brand.
"There is a significant market opportunity for a chilled, ready-to-cook batter - not only for making Yorkshire puddings but also for classic weekday dishes such as toad in the hole," he added.