Wash your lemon. Slice off both ends and discard. (Trimming off the ends reduces excess peel.) Cut the lemon in quarters and pick out any seeds. Add the lemon quarters to your blender.
Add the oil, salt, and sugar to the blender and blend, starting on low speed, working up to high speed, until the dressing is thick and smooth and there are no chunks of lemon rind left. Give the dressing a taste to see if you need to adjust the salt or sugar.
Pour into an airtight jar. Keep the jar at room temperature if you plan to use it the same day, but otherwise store in the refrigerator. You will need to let the dressing sit on the counter after chilling because the olive oil will start to solidify when refrigerated.
Plan to use your dressing within a week. It can be frozen for longer storage.
Nutritional information is provided as a courtesy and is an estimate only. This information comes from online calculators. Although The View from Great Island attempts to provide accurate nutritional information, these figures are only estimates.
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