Add the oil, then when it's hot add the garlic and onions. Stir these around for a few minutes, until the onions are becoming soft. When you taste a piece, the bitterness should be gone from the onion.
Once this is ready, add in the boiled sweet potato and stir it around for another minute.
Using a hand blender, add all ingredients into the pan (except the macaroni) and blend until a sauce forms.
Turn the heat to medium-low. Add the cooked macaroni to the original pan and stir to coat.
Once the macaroni is covered in sauce, serve hot!
Notes
Storage
Store in an airtight container in the refrigerator for up to three days.