1-First Step: Get your glass ready Start by filling a rocks glass or old fashioned glass with ice. A chilled glass helps keep the drink cold longer, and it also gives the cocktail that classic served-over-ice look. If you want a more tropical feel, you can use a tiki-style glass, but a simple rocks glass works perfectly well.

2-Second Step: Juice the lime Cut 1 medium lime and juice it until you have 1 ounce of lime juice. Fresh lime juice matters here because it gives the cocktail a clean, lively taste that bottled juice usually cannot match. If the lime is firm, roll it on the counter first to get more juice out of it. This small step helps the whole drink taste brighter and fresher.

3-Third Step: Build the cocktail in the shaker Place the lime juice, white rum, dark rum, orgeat, and orange liqueur into a cocktail shaker. At this point, you are building the flavor base before chilling it. If you want a smoother sip, add both rums to the shaker. If you want the classic layered look, keep the dark rum aside for a float later.

4-Fourth Step: Add ice and shake well Fill the shaker with ice, seal it tightly, and shake until the outside is very frosty, about 20 seconds. A strong shake chills the drink and helps the ingredients blend together. The frosty shaker is your clue that the cocktail is cold enough and ready to strain.

5-Fifth Step: Strain into the prepared glass Set a fine-mesh strainer over the rocks glass and strain the mixture into the ice-filled glass. The fine mesh catches small ice chips and gives the drink a smoother texture. If you prefer a stronger drink with a pretty top layer, pour the dark rum gently over the back of a spoon after straining to create a rum float.

6-Sixth Step: Add the garnish Finish with a lime wheel, fresh mint sprig, and/or maraschino cherry, depending on what you have on hand and how festive you want the drink to look. The mint adds a nice aroma, the lime wheel gives a fresh look, and the cherry adds a little old-school charm. Serve the cocktail right away while it is still cold and lively.