Apple Cheddar salad

I just whipped up this salad for lunch, it was great and I don't want to forget the recipe!

for one salad:
-- 2-3 cups spring mix
-- 2 T. thinly sliced onions
-- 1/2 med. apple, thinly sliced
-- 1 square inch sharp cheddar cheese, thinly sliced

dressing
-- 2 t. blueberry jam
-- 2 t. apple cider vinegar
-- 2 t. olive oil
-- salt and pepper

-- put all dressing ingredients into a small tupperware container, shake vigorously, open up, taste, adjust ingredients/seasonings to taste

-- put spring mix on a plate, top with the onions, apples, and cheese. Pour dressing over. Eat!