Step 1: Prepare your glass. Rim a margarita glass with lime juice and dip it into salt or sugar, depending on your preference. This step adds an extra layer of flavor and makes your cocktail presentation stunning.

Step 2: In a blender, add the ice, tequila, blue curaçao, triple sec, lime juice, and simple syrup.

Step 3: Blend the mixture on high speed until smooth and slushy. The texture should resemble crushed ice or a soft snow, not too watery but easy to sip through a straw.

Step 4: Taste the mixture and adjust the sweetness if necessary. If you prefer a stronger lime flavor, add a bit more lime juice. For a sweeter cocktail, add a little more simple syrup or agave.

Step 5: Pour the blended cocktail into the prepared glass. Use a spoon to help maintain the slushy texture as you serve.

Step 6: Garnish with a lime wheel on the rim, a few fresh blueberries, or even edible flowers for a beautiful finishing touch.

Step 7: Serve immediately with a straw or a long cocktail spoon and enjoy the refreshing waves of flavor!