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§03 · Dinner · American · mac-and-cheese

Revised Aug 2026 · 3 revisions

Cashew Mac & Cheese

A cheesy-tasting sauce blended from cashews and soft vegetables, built on slow-softened onion for savory depth. Rich and creamy with no dairy in sight.

Illustration of Cashew Mac & Cheese
Hands-on 15 min Total 30 min Serves4 Ingredients15 Cost / Serv.$1.76 Calories678 Contains Gluten, Tree nut, Soy
Servings
4 servings
×1

Ingredients

Everything here is already in your pantry.

Ran low on something?

What swaps in

Whole Wheat Pasta
Semolina pasta less fibre, same timingGluten-free pasta follow the box; timings vary widely and it overcooks fast
Extra-Virgin Olive Oil
Butter 1:1 for cooking; browns at a lower temperature, and it sets solid once coldRefined olive oil higher smoke point, less flavorAvocado oil neutral, very high smoke point
Red Onion
Yellow onion milder cooked, none of the anthocyaninsWhite onion sharper raw, none of the anthocyaninsShallots sweeter and finer; about 3 small per onion
Cashews
Blanched slivered almonds soak longer; slightly grainier when blendedRaw sunflower seeds nut-free, but blends grey-green
Soy Milk
Fortified soy milk same milk with added calcium, D and B12 — the trade is a longer ingredient listDairy milk 1:1; the closest match for protein and bodyOat milk creamier and sweeter, about a third the proteinAlmond milk thinner, with almost no protein
Russet Potatoes
Yukon Gold creamier mash, keeps 4–6 weeks against russet's 2 monthsRed potatoes waxy; hold their shape, mash less fluffyCreamer potatoes waxy and small; no peeling, quicker to cookFingerling potatoes waxy; best roasted, poor for mash
Carrots
Baby carrots no peeling, more per poundFrozen sliced carrots softer; won't roast
Nutritional Yeast
Grated parmesan similar savory depth, saltier; none of the fortified B12, which is most of why this item is here
Garlic
Fresh cloves 1 tsp jarred = 1 clove
Apple Cider Vinegar
White wine vinegar 1:1, cleaner and less fruityDistilled white vinegar sharper; use slightly less
Red Pepper Flakes
Cayenne about ⅓ the amount, and no flecksGochugaru milder and fruitier
Sea Salt
Kosher salt coarser, so more by volume; the ratio depends on the brandTable salt finer and denser; use about ¾ by volume

No close substitute for Onion Powder, Garlic Powder, and Turmeric.

What you'll need

Method

  1. Boil the 4 cups384 g pasta until just tender; reserve a cup of the water, then drain.
  2. Meanwhile, warm the 1 tbsp14 g olive oil in a saucepan over medium heat and soften the 1 cup160 g onion, diced, until translucent, about 5 minutes. Stir in the 2 tsp10 g garlic, 1 tsp2.3 g onion powder, 1 tsp2.8 g garlic powder, ¼ tsp0.7 g turmeric, and ¼ tsp0.5 g red pepper flakes and cook a full minute, until fragrant — that bloom is what makes the sauce taste cooked, not just smooth. Add the 1½ cups225 g potatoes, diced, 1 cup110 g carrots, diced, and 1 cup137 g cashews with water to cover and simmer until everything is very soft, about 12 minutes.
  3. Tip the mixture into a blender with the 4 tbsp20 g nutritional yeast, 3 tsp15 g apple cider vinegar, salt, to taste, and the 1 cup243 g soy milk. Blend until silky, but stop as soon as it is — russets turn gluey if you keep going. Add a splash more water if it’s too thick to move.
  4. Toss the sauce with the pasta, loosening with the reserved pasta water until it coats every piece.

Kids: blend the sauce extra smooth, skip the pinch of red pepper flakes, and stir in a little extra nutritional yeast — that’s the cheesy hit they’re after.

Dietary

  • Gluten contains
  • Tree nut contains
  • Peanut free
  • Soy contains
  • Sesame free

Nutrition

Per serving · makes 4
Calories678Protein26gCarbs101gFiber14gSugars8.7gFat23gSaturated Fat3.7gSodium57mg
Vitamins & minerals
Iron7.3mgCalcium79mgPotassium1266mgMagnesium245mgZinc5.2mgFolate275µgVitamin C11mgVitamin B127.5µgOmega-3 (ALA)0.07g
Estimated from pantry data, excluding Sea Salt (to taste).
Change log · 3 revisions
  1. 12 Aug 2026

    FoundThe sauce was blended with a cup of plain water, so every bit of its body had to come from the cashews and the starchy potato.

    ChangedThat cup of water becomes soy milk. The cashews stay — they are the emulsion here, not a milk substitute — so the sauce gains dairy-like body and protein on top of them rather than instead of them.

  2. 7 Aug 2026

    FoundDijon left the pantry: one recipe, and its tang overlaps the cider vinegar already in the sauce.

    ChangedDropped the dijon and took the cider vinegar to 3 tsp. The potato is now specified russet, so the blending step warns against overdoing it.

  3. 14 Jul 2026

    FoundEvery top vegan mac builds a sauteed-onion base with a bloomed spice layer and tangs the sauce with vinegar, not lemon; ours plain-boiled the vegetables and used lemon.

    ChangedAdded a softened-onion base with the garlic and powders bloomed in oil, and swapped the lemon for apple cider vinegar off the heat for a sharper, more cheese-like tang.

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Cooked it and something was off — too bland, too thick, timing wrong?

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