Combine lemon juice, honey, salt and pepper in a deep bowl or container. I like to use quart containers (Tall deli containers or large soup containers from takeout)

With an immersion blender (or regular blender), combine all ingredients for about 15 seconds and SLOWLY drizzle in olive oil, then canola oil.

The texture and color will begin to lighten as it emulsifies.

You will see oil on top and then suddenly, it will be a perfectly blended dressing that holds together instead of looking separated.

When dressing is nice and thick, add in whole grain mustard and give it one last blast with the immersion blender to combine everything & Voila! Dressing, Done!