Step 1

Use the cup that comes with your immersion blender

Step 2

Place lemonade concentrate and mustard in the cup.

Step 3

Pulse with immersion blender to combine.

Step 4

Add the vegetable oil and process with immersion blender at highest speed, lifting the blender to make sure all the liquid is moving around. It'll take about 60 seconds for this mixture to emulsify.

Step 5

Pulse in poppy seeds.

Step 6

Refrigerate until ready to use.

Step 7

If you don't have an immersion blender but have a regular blender, follow the recipe EXCEPT don't add oil all at once. With the blender running, add the oil in a slow, steady stream.