The invention relates to a computer-aided method for preparing chocolates and/or chocolate-/cocoa-flavored compositions from a bank of ingredients Pj using tools such as a valuation system E which can be used to assign a numerical value vij to the taste descriptor Gi of each ingredient Pj and a function f designating the set of rules that can be used to calculate the values vic characterising the taste of a combination C of chocolates. The invention also relates to a device for performing the inventive method.