This is a roasted red pepper pesto made with toasted almonds instead of pine nuts — smoky, a little sweet, and ready in under 20 minutes once your peppers are done. It works as a burger spread, a pasta sauce, or a dip, and it keeps in the fridge all week. If you want a homemade condiment that actually pulls its weight on a weeknight, this is it.
Before you start
Two things make or break this recipe. First, let your roasted peppers steam properly after they come out of the oven — seal them in a bowl covered with plastic wrap or a plate for at least 10 minutes. That steam loosens the skin so it slips off cleanly instead of tearing the flesh apart. Second, toast the almonds in a dry skillet over medium heat and pull them the moment you smell them — usually 3 to 4 minutes. They go from pale to burnt faster than you expect, and over-toasted almonds turn the pesto bitter.
Ingredient notes
- Roasted red peppers: Jarred peppers packed in water work fine here and cut the total time significantly. Drain and pat them dry before blending or the pesto turns watery.
- Parmesan: Buy a block and grate it yourself — pre-grated Parmesan has anti-caking powder that makes the texture slightly gritty. For a dairy-free version, 3 tablespoons of nutritional yeast is a solid swap.
- Almonds: Raw, unsalted almonds are the right call. Salted or flavored almonds throw off the seasoning balance and you can’t correct it easily once blended.
- Olive oil: Use extra-virgin. This is a no-cook sauce, so the oil flavor comes through directly — a bland light olive oil will flatten everything out.
Leftovers and meal prep
Store the pesto in a sealed jar in the fridge for up to 5 days. Pour a thin layer of olive oil over the surface before sealing — it slows oxidation and keeps the color from going dull. The pesto also freezes well for up to 2 months; spoon it into an ice cube tray, freeze solid, then transfer the cubes to a zip-lock bag. Thaw a cube or two in the fridge overnight. If you want to get ahead, you can roast the peppers and toast the almonds up to 3 days in advance and refrigerate them separately — the actual blending takes about 5 minutes when you’re ready.
What can go wrong
- Pesto is too thick to spread: Add olive oil one teaspoon at a time while the processor is running. A tablespoon of warm water also works if you want to keep the fat content down.
- Pesto tastes flat or dull: This almost always means it needs more salt or more lemon juice — taste and adjust before you call it done. Add acid first, then salt.
- Skin bits in the finished sauce: You missed some pepper skin during peeling. Strain the pesto through a fine mesh sieve or just blend longer — a high-powered blender will break the bits down completely.
- Garlic is too sharp or harsh: Raw garlic punches hard in a no-cook sauce. If your cloves are large, start with one and taste before adding the second. Letting the finished pesto sit for 15 minutes mellows the bite noticeably.
- Almonds won’t blend smooth: Skip the egg in the mix — it makes the patty mushy. For the pesto specifically, if the almonds are staying chunky, make sure they cooled fully before blending; warm nuts release oil unevenly and can seize up in the processor.
Roasted Almond and Red Pepper Pesto
Ingredients
- 2 whole red bell peppers fresh, about medium-sized
- 1 cup almonds raw or lightly toasted
- 2 cloves garlic peeled
- 2 tablespoons extra-virgin olive oil high-quality recommended
- ¼ cup freshly grated Parmesan cheese
- ½ teaspoon sea salt adjust to taste
- ¼ teaspoon black pepper freshly ground
- ½ whole lemon, juiced for brightness
Instructions
- Preheat your oven to 200°C (400°F). Rinse and dry the red bell peppers, then place them on a parchment-lined baking sheet.
- Lightly drizzle olive oil over the peppers and roast for about 15 minutes, or until the skins start to blister and char slightly on the edges.
- Remove the peppers from the oven and place them in a bowl. Cover with plastic wrap to steam for 5 minutes—this helps loosen the skins for easier peeling.
- Meanwhile, warm a small skillet over medium heat. Toast the almonds for 3–4 minutes, stirring frequently until they become fragrant and lightly golden.
- Peel away and discard the skins from the roasted peppers; remove the seeds and stems. Roughly chop the peppers into pieces.
- In a food processor or blender, combine the chopped peppers, toasted almonds, garlic, Parmesan cheese, salt, pepper, and lemon juice.
- Pulse a few times to break down the ingredients, then stream in the olive oil while blending. Continue to blend until you achieve a creamy, slightly textured pesto.
- Taste the pesto and adjust the seasoning with additional salt, pepper, or lemon juice as desired.
Notes
- For a vegan version, substitute the Parmesan cheese with 2 tablespoons of nutritional yeast.
- If you don't have fresh peppers, jarred roasted peppers work as well—just make sure to drain them before use.
- Toss this pesto with your favorite pasta or gnocchi.
- Spread it on crusty bread for a vibrant appetizer, garnishing with a few toasted almonds on top.
- Pair it with crisp white wine or a light rosé to complement the smoky-sweet flavor.
- This recipe draws upon Mediterranean cuisine, known for its celebration of fresh produce paired with nuts and olive oil. The roasted peppers bring a sweet, slightly smoky depth, contrasting the nutty taste of almonds. Historically, pesto has evolved across various regions; this version adapts the concept beyond traditional basil for a colorful, rich flavor profile.
Nutrition
Your questions, answered
Can I use store-bought roasted red peppers instead of roasting my own?
Yes, jarred roasted red peppers work well. Drain them thoroughly and pat dry with paper towels — excess brine will make the pesto thin and slightly sour.
How do I use this pesto on a burger?
Spread it directly on the cut side of the bun in place of mayo or mustard. It pairs especially well with grilled chicken burgers, lamb patties, or a halloumi stack — the sweetness of the pepper cuts through rich, fatty proteins.
Can I make this without a food processor?
A blender works fine, though you may need to scrape down the sides more often. A mortar and pestle is traditional but takes real effort with almonds — expect a chunkier, more rustic texture.
Is there a nut-free version?
Swap the almonds for toasted sunflower seeds using the same quantity. The flavor is slightly earthier but the texture holds up well, and it’s a practical option for anyone with tree nut allergies.
How do I keep the pesto from turning brown in the fridge?
Pour a thin layer of olive oil over the surface before sealing the container — this limits air contact and keeps the color bright. Press a piece of plastic wrap directly onto the surface if you don’t want to add extra oil.
Can I make this ahead for a party?
Yes, and it actually tastes better after a few hours in the fridge once the flavors settle. Make it up to two days ahead and keep it sealed — just give it a stir and a quick taste before serving in case it needs a squeeze of lemon to freshen up.