This peanut butter sauce is creamy, savory, lightly sweet, and quick to whisk together on the stove. A little warm water loosens the peanut butter while soy sauce, lime, and garlic balance its richness, making a versatile dip or drizzle for noodles, vegetables, and more.
Ingredients
- ½ cup (about 125 g) creamy peanut butter, preferably unsweetened
- ¼ cup warm water, plus more as needed
- 2 tablespoons low-sodium soy sauce
- 1 tablespoon fresh lime juice
- 1 tablespoon maple syrup or honey
- 1 teaspoon rice vinegar
- 1 teaspoon finely grated fresh ginger
- 1 small garlic clove, finely grated or minced
- ½ teaspoon toasted sesame oil
- ⅛ teaspoon red pepper flakes, optional
Instructions
- Combine the flavorings. In a small saucepan, whisk together the soy sauce, lime juice, maple syrup, rice vinegar, ginger, garlic, sesame oil, and red pepper flakes, if using.
- Whisk in the peanut butter. Add the peanut butter and warm water. Whisk over low heat for 2–3 minutes, until the sauce is smooth and evenly combined. Keep the heat gentle; the sauce only needs warming, not boiling.
- Adjust the consistency. For a thinner drizzle, whisk in warm water 1 tablespoon at a time. For a thicker dip, let the sauce stand for a few minutes or add another spoonful of peanut butter.
- Taste and serve. Add a squeeze of lime for more brightness, a little maple syrup for sweetness, or a splash of soy sauce for saltiness. Serve warm or at room temperature.
Tips
- Choose the right peanut butter. Smooth, well-stirred peanut butter makes the most predictable sauce. Natural peanut butter works, but mix it thoroughly first; separated oil can make the sauce greasy or difficult to blend.
- Add liquid gradually. Peanut butter thickens as it cools, and brands vary in texture. Start with the listed water, then add more a tablespoon at a time until it suits your use.
- Keep the heat low. High heat can cause the sauce to scorch or separate. If it looks oily, take it off the heat and whisk in warm water a teaspoon at a time.
- Check the labels. Soy sauce contains soy and often wheat; use certified gluten-free tamari if needed. Peanut butter is an allergen, so this recipe is not suitable for anyone with a peanut allergy.
Serving Suggestions
Drizzle the sauce over rice noodles, stir-fried vegetables, grain bowls, or grilled tofu. It also works as a dip for fresh vegetables, spring rolls, cooked chicken satay, or skewered vegetables. For a noodle bowl, thin the sauce with a few tablespoons of warm water until it coats the noodles without clumping, then finish with lime juice, sliced scallions, or sesame seeds.
Use it as a dressing for shredded cabbage, carrots, and cucumber, thinning it with water until pourable. For a sandwich or wrap, keep it thicker and spread a modest layer over the filling. If serving as a dip, place it in a clean bowl and keep it separate from raw meat, seafood, or used utensils.
Variations
- Spicy: Increase the red pepper flakes or whisk in 1–2 teaspoons of sriracha or chili-garlic sauce. Taste before adding extra soy sauce, since prepared chili sauces can be salty.
- Coconut-lime: Replace some or all of the warm water with unsweetened coconut milk, then add extra lime to taste. The sauce will be richer and may thicken more as it cools.
- Less sweet: Reduce the maple syrup or honey to 1 teaspoon, or leave it out and add a little more lime juice. The result will be more savory and tangy.
- Gluten-free or vegan: Use gluten-free tamari in place of soy sauce. For a vegan sauce, choose maple syrup rather than honey.
- Sesame-free: Omit the sesame oil. The sauce will still be flavorful; add a little extra lime or ginger if you like.
Storage and Reheating
Cool the sauce promptly and store it in a clean, airtight container in the refrigerator for up to 4 days. Do not leave it at room temperature for more than 2 hours, or more than 1 hour if the temperature is above 90°F (32°C). If the sauce has been in contact with raw meat, seafood, or a used dipping utensil, discard it rather than saving it.
The sauce will firm up when chilled. Reheat only the portion you need in a small saucepan over low heat, stirring in warm water a little at a time until smooth. You can also microwave it in a microwave-safe bowl in 15-second bursts, stirring between bursts. Avoid boiling it. If it has been refrigerated, use it within the 4-day window even if you reheat it; reheating does not reset storage time.
Frequently Asked Questions
Why is my peanut butter sauce too thick?
Peanut butter thickens as it cools, and some brands are naturally firmer than others. Whisk in warm water 1 tablespoon at a time until it reaches the consistency you want. For a cold sauce, allow for extra thickening after it goes into the refrigerator.
Can I make this sauce without cooking it?
Yes. Whisk the ingredients together in a bowl, using warm water to help the peanut butter loosen. The brief stovetop warming makes it especially smooth and brings the flavors together, but it is not required for food safety when using fresh ingredients and clean utensils.
Can I make it ahead?
Yes. Make it up to 4 days ahead and refrigerate it in an airtight container. The sauce will thicken, so stir in warm water when you reheat or serve it. Taste again before serving, since chilling can mute the lime and other seasonings.
Can I use crunchy peanut butter?
Yes. It gives the sauce a coarser texture with small peanut pieces. For a smooth dipping sauce or noodle coating, creamy peanut butter is easier to whisk and distribute evenly.
What can I use instead of soy sauce?
Use tamari for a gluten-free option, checking the label to confirm it is gluten-free. Coconut aminos can also work, though they are usually sweeter and less salty, so add them gradually and adjust the lime and salt to taste.
Can I freeze peanut butter sauce?
You can freeze it in a tightly sealed freezer-safe container for up to 2 months, but the texture may separate or become grainy after thawing. Thaw it overnight in the refrigerator, then whisk well while gently warming and add water as needed. For the smoothest result, making a fresh batch is preferable.