First make your cranberry mayo. We used store bought canned cranberry sauce, and mayonnaise. Combine them in a small bowl. If you're making more than 2 sandwiches, just remember to equal proportions of cranberry sauce and mayo. Stir until completely combined and set aside.
To make the sandwiches, butter your slices of bread and layer several slices of turkey, some red leaf lettuce (or your favourite kind of lettuce) and some cranberry mayo. Slice the sandwiches into triangles to serve, and enjoy.