Ingredients

• 1 cup white sugar
• 3/4 cup water
• 1 tablespoon vanilla extract
• 4 drops red food coloring
• 1 (2 liter) bottle lemon-lime flavored carbonated beverage, chilled
• 1 lemon, sliced

Instructions

1. In a saucepan, combine sugar and water. Boil for 1 minute, stirring to dissolve sugar. Remove from heat, and stir in vanilla and red food coloring; allow to cool. Store in a squeeze bottle for easy use.
2. Fill glasses halfway with ice. Add 1 tablespoon syrup, then top with 8 ounces lemon-lime soda. Garnish with a slice of lemon.