Mix quark and curry, season with salt and pepper. Wash the lettuce leaves and dab dry. Cut wholemeal toasts diagonally in half, spread 2 halves with 1 tablespoon curry curd each.
Wash kumquats, dab dry and cut into slices. Cover the slices coated with curry quark with a salad leaf and a slice of Emmental cheese. Spread onion rings and kumquats on top.
Add 1 tablespoon of curd cheese as a blob and cover with the 2 other toast sticks. Put 1 toothpick in each sandwitch and arrange on a plate.