Vintage Barbie Lunchtime #1673 (1966-1967)
 
”Barbie” Print Dress
Hot Pink Belt
Medium Pot with Lid
Teakettle
Toaster
2 Slices of Plastic Toast

Vintage Barbie Learns To Cook! #1634 (1965)
 
”Barbie” Print Dress
Hot Pink Belt
Aqua Closed Toe Heels
Double Boiler
Easy As Pie Cookbook
Potholder (match dress)
Small, Medium & Large Cooking Pots with Lids
Teakettle
Toaster
2 Slices of Plastic Toast

With the exception of a few accessories (including shoes), these two ensembles are identical.  The dress is by far the easiest item to find.  It is an adorable multicolor Barbie print.  The belt, the closed toes shoes and all of the cooking pieces are very hard to find.

Mattel released a Barbie Learns To Cook Vintage Reproduction for 2007.