Prices updated daily — 2 June 2026
Product type overview
custard powder sits within Custard, Pudding & Desserts, part of Dairy, Eggs & Butter. On this page you compare 3 products from 6 UK supermarkets: Tesco, Sainsbury's, ASDA, Aldi, Morrisons and Waitrose. The lowest unit price for custard powder is £6.71/kg at ASDA. In total, 1 variants of custard powder are compared (different pack sizes and compositions). All prices are normalised to the same unit (per kilogram, per litre or per piece) so that packs of different sizes can be compared fairly — a larger pack is not automatically the best value. The ranking below shows, per variant, which supermarket currently has the sharpest price, including own-label products alongside national brands. Prices refresh daily from the retailers' own public price lists, so you never see stale offers when planning your weekly shop. Allsupers uses no affiliate links or paid placement; the ranking is purely price-based and updated from public data.
Cheapest custard powder
Compare 3 products across 6 supermarkets
custard powder — compare prices across 6 supermarkets

Bird's
Bird's 350g Ready To Make Original Custard Powder Dessert Mix
350 g
£6.71/kg
at 2 supermarkets

Sainsbury's
Sainsbury's Instant Custard Powder No Added Sugar 72g
72 g
£11.11/kg
at 1 supermarket

Bird's
Bird's Instant 3 x 75g Custard Powder Dessert Mix Sachets
225 g
£11.11/kg
at 1 supermarket