- In a large saucepan, cook the ditalini pasta according to package directions, reserving 1/3 cup cooking water. Drain and set aside. 
- Into the saucepan used for the pasta, over medium-low heat, add the butter. When the butter is melted, add the garlic and cook for 1 minute, until very lightly golden in color. 
- Add the peas, reserved pasta cooking water, and salt. Bring to a simmer, then cover and cook for 5 minutes. 
- Using a slotted spoon, remove half the peas and set aside. 
- Using an immersion blender, or transferring to a stand blender, puree the mixture until the consistency is smooth. 
- Add the cooked ditalini to the saucepan, then stir to coat. 
- Add the reserved peas then use salt to adjust the seasoning to taste. 
- Top with chopped basil and remaining 2 tablespoons Parmesan cheese, then serve warm.