1. Begin by preparing the simple syrup. In a small saucepan, combine equal parts sugar and water (for example, 1 cup sugar and 1 cup water). Bring the mixture to a boil over medium heat, stirring occasionally until the sugar completely dissolves. Once the sugar has dissolved, remove the saucepan from heat and let the simple syrup cool completely.

2. While the simple syrup is cooling, prepare the lemons for juicing. Roll the lemons on a countertop to help release their juices. Cut the lemons in half and use a juicer to extract 1 cup of fresh lemon juice. If desired, strain the juice through a fine mesh sieve to remove any seeds or pulp.

3. In a blender, combine the vodka, freshly squeezed lemon juice, and the cooled simple syrup. Blend the mixture on medium speed until all ingredients are well mixed and combined.

4. Add the 4 cups of ice to the blender. Blend on high speed until the mixture reaches a slushy consistency. You may need to stop the blender and scrape down the sides to ensure that all the ingredients are well incorporated and to achieve a uniform texture.

5. Taste the slushie and adjust the sweetness if necessary. If you prefer a sweeter slushie, add more simple syrup and blend again briefly to mix.

6. Once the slushie has reached the desired consistency and flavor, pour the mixture into glasses.

7. If desired, garnish each glass with a lemon slice or twist and a few fresh mint leaves for added visual appeal and flavor.

8. Serve the Frozen Lemon Drop Vodka Slushies immediately and enjoy this refreshing drink