West Midlands (region) in 1928, "Whole Nut" in 1930, "Cadbury Roses" in 1938, and the "Cadbury Creme Egg" in 1971. George and Richard Cadbury built their factory in 1879 and Bournville in 1893, named after the Bourn brook. Iceland (supermarket) opened its first store in Oswestry in 1970 – heralding the onset of frozen food in the UK. Alfred Bird invented egg-free custard in 1837 in Birmingham – accidentally given to guests at his home, being created as his wife had an allergy to eggs; he then invented baking powder in 1843 as his wife also had an allergy to yeast. J. R.
Cadbury Mondelez also sells biscuits bearing the Cadbury brand, such as Cadbury Fingers. Cadbury also owns Trebor Bassett, Fry's and Maynards. Ice cream based on Cadbury products, like 99 Flake, is made under licence by Frederick's Dairies. Cadbury cakes and chocolate spread are manufactured under licence by Premier Foods, but the cakes were originally part of Cadbury Foods Ltd with factories at Blackpole in Worcester and Moreton on the Wirral, with distribution depots throughout the UK. Other Kraft subsidiaries in the UK include Cadbury Two LLP, Cadbury UK Holdings Limited, Cadbury US Holdings Limited, Cadbury Four LLP, Cadbury Holdings Limited, and