How to Make Nut Butter in a Blender
Store-bought nut butter is mostly just roasted nuts blended long enough to release their own oil — no added sugar, palm oil, or stabilizers required. A blender does this faster than a food processor because its narrower jar and vortex action keep pulling nuts back down into the blades, but it also asks more of the motor than a smoothie does, which is where cheaper or lower-powered blenders tend to stall out.
The method below works with any nut — peanuts, almonds, cashews, walnuts, pistachios — and the ratio and timing barely change between them. What does change is how much torque your blender has, so we call out where a personal blender is likely to struggle versus a full-size, high-power model.
Why this is harder on a blender than a smoothie
A smoothie is mostly liquid, so the blades have something fluid to grab onto right away. Nuts start out dry and bounce around the jar instead of feeding into the blades, which is why nut butter puts more sustained strain on a motor than almost anything else people blend at home.
High-power countertop blenders like the Vitamix 5200 or Blendtec Classic 575 are built to push through this — their motors are rated for exactly this kind of dense, low-moisture load, and a narrow, tall jar (or a tamper, on blenders that include one) keeps forcing nuts back toward the blades instead of letting them ride on top.
What you need
2-3 cups of a single nut (roasted, unsalted, with skins removed where applicable) is roughly the minimum batch that reliably reaches the blades with enough mass to self-feed — smaller batches tend to just bounce around a wide jar without ever catching.
A pinch of salt is the only other ingredient most recipes need. Roasting raw nuts at 350°F for 8-10 minutes before blending isn't required, but it noticeably speeds up the process and improves flavor, since warm nuts release their oil faster than cold ones.
Step-by-step
1. Add the nuts to the jar and start on the lowest speed just long enough to break them into a coarse meal, about 15-20 seconds. 2. Stop and scrape down the sides and bottom with a spatula — nuts that stick to the jar wall never make it into the blend. 3. Increase to medium-high speed and blend in 30-45 second bursts, scraping down between each one. If your blender has a tamper, use it to keep pushing the mixture back into the blades instead of letting it climb the sides. 4. Keep going through the dry, crumbly, paste-like, and finally smooth stages — most nuts take 3-5 total minutes of actual blending time, not counting scraping pauses. 5. Stop as soon as it loosens into a pourable, glossy butter; running it longer than that mostly just builds heat without improving texture.
Why it goes through a dry, crumbly stage before turning smooth
Nuts release their oil gradually as the blades break down their cell walls, so the mixture genuinely looks like dry sand, then a thick dough, before it loosens into something pourable — stopping partway through because it 'isn't working' is the most common reason people give up on a batch that would have turned out fine with another minute or two.
If it's stuck at the dry or dough stage for several minutes without loosening at all, that's usually a batch too small to self-feed, a blender without enough torque for the load, or a jar that needs another scrape-down rather than more time.
Can a personal blender do this?
Personal blenders like the NutriBullet Pro 900 are built around a smaller motor and a sealed, single-serve cup, which puts them at a disadvantage for nut butter in two specific ways: they heat up faster under a dense, low-moisture load, and there's no tamper or room to scrape down and redistribute nuts mid-blend.
If a personal blender is what you have, run it in short 15-20 second bursts with pauses to let the motor cool rather than one long run, and expect a chunkier result than a Vitamix or Blendtec would produce. For anything beyond an occasional small batch, a full-size high-power blender is the more reliable tool.
Storage
Fresh blended nut butter keeps in an airtight container for 2-3 weeks at room temperature, or 1-2 months refrigerated. Natural oil separation at the top of the jar is normal, not spoilage — stir it back in before using.
Skip adding extra oil to try to extend shelf life or smooth out the texture; it's rarely necessary if you blend long enough for the nuts to release their own oil, and it just dilutes the flavor.
Frequently Asked Questions
- Why is my blender nut butter still dry and crumbly after blending?
- It's usually one of three things: the batch is too small for the nuts to self-feed into the blades, the blender doesn't have enough torque for the load, or it just needs another minute or two and a scrape-down — nut butter goes through a dry, sandy stage before it loosens into a smooth butter, and stopping during that stage is the most common reason a batch looks like it failed.
- Can I make nut butter in any blender?
- Technically yes, but a high-torque, full-size blender like a Vitamix or Blendtec gets there faster and smoother, since the motor is rated for dense, low-moisture loads and a tamper or narrow jar helps keep nuts feeding into the blades. A personal blender like the NutriBullet can do small batches in short bursts, but expect more scraping, more heat buildup, and a chunkier result.
- Do I need to add oil to help it blend?
- Usually not. Nuts release their own oil as the blades break them down, which is what eventually turns a dry, crumbly mixture into a pourable butter. Adding a little oil can help rescue a batch in an underpowered blender that's struggling to loosen up, but it dilutes flavor and isn't needed in a blender with enough power.