Yes, the printed recipe from the magazine is 1.5 TEASPOONS of Dijon.
Are you sure the Dijon mustard isn't supposed to be 1.5 teaspoons instead of tablespoons? It seemed off, but I followed the recipe anyway and the mustard was wildly overwhelming. I ended up doubling all the other ingredients again just to offset all that mustard and let the maple flavor some through a little. Otherwise, tasty.
The water cress will take 30 minutes to clean and de-stem. If you dont have the time or patience - use another type of hearty lettuce. Otherwise a great salad.
This dressing was very tasty. I served it over a regular tossed salad with the apples and blue cheese. I also added walnuts.