Ingredients
2 cups sugar
1/2 cup fresh lemon juice, plus 6 long strips lemon zest (from 2 to 3 lemons)
12 unsprayed fresh elderflower heads, stems removed (about 1 cup; available at some farmers' markets), or 1/4 cup dried elderflower heads (available at health-food stores)
Preparation
Bring sugar and 2 cups water to a boil, stirring, until sugar is dissolved, about 3 minutes. Remove from heat; let cool completely.
Meanwhile, in a bowl, combine lemon juice, zest, and elderflowers. Pour syrup over flower mixture; stir to combine. Cover and refrigerate 1 day. Strain cordial through a fine-mesh sieve; discard flowers. Cordial can be refrigerated in an airtight container up to 1 month.