This Taco Bell Dirty Baja Blast Dream Soda copycat blends crisp Baja Blast with a smooth vanilla cream for a refreshing dirty soda you can make at home.
Combine the whole milk, heavy cream, sugar, vanilla extract, and salt in a small bowl. Mix well.
Pour the mixture into an air-tight container and refrigerate. This will stay fresh for about 1 week.
Fill a large drinking glass 3/4 of the way full with ice. Pour Mountain Dew Baja Blast into the glass until it reaches about 1 1/2 inches from the top. Add one tablespoon of the prepared cream and stir with a bar spoon until blended.