Bright Light Rum Sour with Fresh Lime and Demerara Syrup

By , Test Kitchen Director · Reviewed by AislePrompt Editorial · ·

A vibrant sour cocktail combining light rum with freshly squeezed lime juice and rich demerara sugar syrup, shaken to a crisp balance of tartness and sweetness. This caribbean-inspired cocktails & drinks ready in about 5 minutes brings together light rum, fresh lime juice, demerara sugar syrup for a refreshing, crowd-pleasing drink — a bright, easy pour for parties, gatherings, or any warm-weather afternoon when you want something festive without alcohol-only options. Each serving lands at about 155 calories and feeds 1, so it works for entertaining, brunch, or a non-alcoholic option at the bar cart. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 5 min Serves 1 Caribbean cuisine 155 cal/serving
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Ingredients

Equipment for this recipe

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Instructions

  1. Step 1: Fill a cocktail shaker with 1 cup ice cubes. Pour in 2 oz light rum, 1 oz fresh lime juice, and 0.75 oz demerara sugar syrup.
  2. Step 2: Shake vigorously for 15 seconds until the outside of the shaker feels cold and condensation forms.
  3. Step 3: Strain into a chilled coupe glass. Garnish with 1 lime wheel on the rim for a fresh citrus aroma.

Frequently asked questions

How long does Bright Light Rum Sour with Fresh Lime and Demerara Syrup take to make?

Total time is about 5 minutes (5 min prep + 0 min cook). Most home bartenders find this fits a single afternoon; scale up the batch for parties or pitchers.

How do I store leftover Bright Light Rum Sour with Fresh Lime and Demerara Syrup?

Refrigerate any leftover bright light rum sour with fresh lime and demerara syrup in a sealed pitcher or jar for up to 3–4 days. Do not reheat — drinks are served chilled. If the recipe uses sparkling water or fresh herbs, hold those back and add fresh just before pouring so the drink stays bright and fizzy.

Can I substitute ingredients in Bright Light Rum Sour with Fresh Lime and Demerara Syrup?

Yes — most ingredients in this recipe have flexible swaps. For oil, use any neutral high-smoke-point oil (avocado, grapeseed, refined coconut). For aromatics, dried herbs at ⅓ the volume of fresh work in a pinch. The full ingredient list is shoppable on Instacart so you can see substitutes in real time.

How do I scale Bright Light Rum Sour with Fresh Lime and Demerara Syrup for a different number of people?

The recipe is written for 1 servings. Multiply each ingredient by (your serving target / 1). Cook time stays roughly the same up to 2x; for 3-4x batches, switch from a skillet to a sheet pan or stockpot so the food isn't crowded — overcrowding steams instead of browns.

What goes well with Bright Light Rum Sour with Fresh Lime and Demerara Syrup?

Caribbean cocktails & drinks like this pair well with a simple grain (rice, couscous, or crusty bread), a quick salad with acid (lemon vinaigrette, pickled onions), and a pan sauce or yogurt-based dip. Tap "Plan a meal with the AI" to get specific side suggestions.