1-First Step: Mix the blood rim Place 1/4 cup corn syrup and 2 teaspoons red food coloring into a microwave-safe glass bowl. Stir them together until the color looks even. The mixture should turn a bold red that already hints at the spooky finish to come. This part is simple, but do not rush it.

2-Second Step: Warm the rim mixture carefully Put the bowl in the microwave for 45 seconds to 1 minute. Watch closely and stop once it starts to bubble up. You want it warm enough to loosen slightly, not so hot that it becomes too stiff later. If it gets overheated, it can harden too much and make dipping difficult. Let the syrup cool to room temperature before using it. That cooling step matters more than people think. If the rim mixture is too hot, it can slide off the glass instead of clinging lightly where you want it.

3-Third Step: Prep the glass Once the syrup has cooled, dip your glass to lightly rim it. A gentle rim works best here. You do not need a thick coating unless you want a full-on vampire effect. A light blood rim gives the cocktail a neat, eerie look while still keeping the glass easy to drink from.

4-Fourth Step: Build the cocktail Fill a cocktail shaker with ice. Add 2 ounces whiskey, 2 ounces sweet vermouth, and a couple of dashes of bitters. The ice chills the drink while the shaker helps everything blend together. This cocktail is stirred, not shaken, so use a spoon or the stirring method inside the shaker if you like a smoother texture with less dilution. Stir until the mixture is very well chilled. This usually takes about 20 to 30 seconds, depending on how cold your ice is. You want the shaker to feel frosty on the outside, which tells you the drink has cooled down enough for serving.

5-Fifth Step: Strain and garnish Strain the cocktail into your chilled blood-rimmed glass. The chilled glass keeps the drink crisp and helps the rim hold its shape a little longer. Add one maraschino cherry on top for that classic finishing touch. If you use a cherry with a stem, it looks even better and gives the cocktail a more polished look. Serve right away while everything is cold and the rim still looks fresh. The Bloody Manhattan is at its best when it goes from shaker to glass without much delay.