Begin by juicing 4-5 fresh lemons to extract about 1 cup of tangy lemon juice. Zest one of the lemons, ensuring you capture only the bright yellow part for maximum flavor. Open a can of full-fat coconut milk, as its rich creaminess will give your Frozen Coconut Lemonade a luscious texture. Prepare these ingredients at your workstation to streamline the blending process.

In a sturdy blender, introduce the freshly squeezed lemon juice, lemon zest, and one can of coconut milk. Add 1/2 cup of granulated sugar or your choice of sweetener to balance the tartness of the lemons. This mixture sets the foundation for your Frozen Coconut Lemonade, giving it both tang and richness. Blend these core ingredients on medium speed until well-combined, about 30-45 seconds.

Next, throw in about 3 cups of ice cubes to the blended mixture. This essential step transforms the drink into a refreshing slushy consistency. Blend on high speed for another 30 seconds or until the ice is finely crushed and the mixture looks creamy and frosty.

Once blended, taste your Frozen Coconut Lemonade to ensure it meets your sweetness and tartness preferences. If it could use more sweetness, sprinkle in extra sugar or sweetener and briefly blend again for about 10-15 seconds.

Pour the Frozen Coconut Lemonade into chilled glasses for an inviting presentation. Garnish each glass with lemon slices or a sprinkle of shredded coconut on top.

For an adult version, consider adding a splash of vodka or rum during the blending process. Blend again briefly to mix before serving.

If you happen to have leftovers, pour any remaining Frozen Coconut Lemonade into an airtight container and freeze it for future enjoyment. When you're ready to indulge again, simply re-blend the mixture.