Rinse the cucumber well, pat it dry and cut it into thin rounds. Set aside.
I have not peeled the skin, but you can peel the skin if you prefer. Especially if the cucumber you are using has thicker skin, remove it before cutting the cucumber.
Using a sharp knife or kitchen scissor, trim off the crusts.
Spread butter on one slice of bread generously. A thick layer of butter will prevent the sandwiches from becoming soggy.
Now take a spoonful of coriander chutney and spread it on the other slice of bread.
Place 6-8 cucumber slices on the top of the buttered bread slice.
Sprinkle some chaat masala on the cucumber slices. If you do not have chaat masala, sprinkle salt and pepper.
Now cover the buttered and cucumber bread slice with chutney smeared bread slice.
Cut the sandwich diagonally two times to create four triangle pieces. Or cut the sandwiches as you prefer.
Continue with the remaining bread slices the same way to make sandwiches.
Serving and Storing suggestions
Cucumber and Chutney Sandwiches are best served immediately. Or you can enjoy them within an hour of making them.
Serve the sandwiches with tomato ketchup, more chutney, or your choice of dip.
The sandwiches will become soggy upon keeping for longer. But if you still need to serve it later, place the lettuce on the cucumber and then cover it with another chutney bread slice.
You can store the sandwiches in an airtight container in the refrigerator, but not for too long.
For packing the cucumber and chutney sandwiches in a lunchbox, wrap it with cling wrap to keep it fresh for longer.
Notes
Use your choice of bread, white, whole wheat, multi-grain, or rye bread.
Choose the cucumber with fewer to no seeds if possible.
You can peel the cucumber if you want, or if the cucumber has very thick skin, peel it.
The chutney should be thick and spreadable. The thin and runny chutney will make the sandwiches soggy immediately.
If you do not have chaat masala, use salt and pepper to taste.
Salted butter provides the best flavor, but you can use unsalted if you prefer.