1-First Step: Make the blood rim mixturePlace 1/4 cup corn syrup and 2 teaspoons red food coloring into a microwave-safe glass bowl. Stir well until the color looks even. The mixture should turn a deep, spooky red that will cling nicely to the glass.

2-Second Step: Warm it just enoughMicrowave the bowl for 45 seconds to 1 minute. Stop as soon as the mixture just starts to bubble. This part matters because overheating can make the syrup too thick and hard to use. You want it warm and fluid, not stiff.

3-Third Step: Cool the rim mixtureSet the bowl aside and let the syrup cool to room temperature. This keeps the coating smoother when you dip the glass. It also helps the blood rim settle onto the glass without sliding off.

4-Fourth Step: Rim the cocktail glassDip the cocktail glass lightly into the cooled syrup. You only need a thin coat around the edge. A light rim works best because it gives the glass a dramatic look without overwhelming the drink. If the rim is too heavy, it may get sticky or messy.

5-Fifth Step: Chill and mix the cocktailFill a cocktail shaker with ice. Add 2 ounces whiskey, 2 ounces sweet vermouth, and a couple of dashes of bitters. Stir the mixture until it is well chilled. Stirring keeps the drink smooth and classic, which is exactly what you want for a Manhattan.

6-Sixth Step: Strain and serveStrain the cocktail into the chilled rimmed glass. Make sure the drink lands neatly in the center so the blood rim stays visible. The red edge against the dark cocktail makes the drink look dramatic right away.

7-Final Step: Garnish and enjoyTop the drink with one maraschino cherry. Serve right away while it is cold. The cherry adds a simple finishing touch and gives the Halloween cocktail recipe a nice classic look.