Food & Cooking Recipes Healthy Recipes Gluten-Free Recipes Rosemary-Lemon Syrup 3.7 (6) Close Credit: Johnny Miller Yield: 9 drinks Use this recipe when making our Black Lagoon Cocktail. Directions With a vegetable peeler, remove the peel from lemons, leaving bitter white pith behind. Combine peel plus remaining ingredients in a medium saucepan. Bring to a simmer, stirring, until sugar is dissolved. Remove from heat and let cool. Strain through a fine sieve (discard solids), and chill.