⅓ cup finely chopped California Giant blackberries
¼ tsp kosher salt
Stir together ingredients for the mustard and set aside.
Butter one side of each slice of bread and then place on a surface butter face down. Evenly spread blackberry mustard on all slices of bread. Place 1 slice of cheese and 2 slices of turkey on each piece of bread. Place about 4 slices of apple on EVERY OTHER piece of bread, and then top with the slice next to it with no apples. You should now have a sandwich that is bread - mustard - cheese - turkey - apple - turkey - cheese - mustard - bread.
Preheat a large sauté pan or grill pan (my favorite!).
Grill or sauté each sandwich on both sides until golden brown and cheese is melted. (If bread is golden before the cheese is melted, put the sandwiches in a 400-degree oven until the cheese melts).
Allow sandwiches to cool slightly so that cheese doesn’t ooze out. Trim the sides of the sandwiches to square it off and then cut into 4 bite size pieces. Eat warm!