1 can tomatoes (from the garden or store), drained
one small apple, peeled and cored, or 1/2 regular (I eat the peelings)
part of red bell pepper (1/8 or so)
dried cilantro (or fresh from the store if it looks reasonable--ours was droopy)
tiny bit of onion and garlic so it doesn't overwhelm the other flavors. Add more to taste.
Blend up in a blender. The carrot thickens the sauce.