There were also bacon sandwiches, tea and coffee being served to customers on the day, plus music playing to add to the buzzing atmosphere!
The 18,500 sq ft discount store, which is next to the site of the Chapel Down brewery, has created 40 jobs.
The store features 93 parking spaces and will open from 8am to 10pm Monday to Saturday. On Sundays, the supermarket will open from 10am to 4pm.
Visit the Aldi website for more details and opening hours.