I picked a $35 immersion blender over a full food processor for a small batch of romesco sauce.
The blender gave me more control over the texture, and I didn't have to clean a bunch of extra parts, so what's your go-to tool for sauces that need a bit of chunk left in them?
Oh, give me a potato masher every time. I use it for everything from chunky pasta sauces to smashing up avocados for guac. You get way more feel for the texture than a blender or food processor, and you can stop the second it looks right without pulsing and checking five times. Plus it doubles as a weapon if someone comes for your romesco.