In a small saucepan over medium-high heat, stir together water and cornstarch.
Heat mixture to a gentle boil. Reduce heat to low, and stir until mixture thickens
and is translucent. Remove from heat and let cool.
Brush cooled cornstarch mixture on the top of ordinary Kaiser rolls.
mixture, sprinkle equal amounts of caraway seeds and pretzel salt.
Heat in a 350 degrees F oven for about 3 minutes, long enough for the top of the rolls to get crusty
and for the caraway seeds and salt to stick.