Nuts
Black Walnut
Black walnut is the bold-flavoured nut of Juglans nigra, native to eastern and central North American hardwood forests and long distinct from milder Persian (English) walnut. Fresh meats taste resinous, aromatic, and wild, with a dark pellicle that stains batters a faint tan. Oil content is high and drying-prone, so kernels rancidify fast in warm pantries—freeze what you will not use soon. Thick green hulls leave permanent brown stains on hands and counters; process outdoors or on protected surfaces. Hard shells need heavy crackers; commercial Midwestern crackers supply most grocery kernels. Cooks fold them into ice cream, fudge, cakes, and regional wild-food baking where a little goes a long way. Good kernels smell woodsy-sweet and snap clean; paint or varnish notes mean discard. Hull sludge is not food—only cured meats enter the kitchen. Label as a tree nut that cross-reacts with other walnuts.
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A sample of named types with their own origin and culinary profiles.
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Nutrition and pairings
Nutrition
Typical values per 100 g edible portion. Nutrient names open the reference page.
Nutrition Facts
Per 100 g edible portion
Amount per 100 g
- Total Fat 53.7 g
- Saturated Fat 6.68 g
- Trans Fat 0 g
- Monounsaturated Fat 26 g
- Polyunsaturated Fat 14.5 g
- Cholesterol 0 mg
- Sodium 4.64 mg
- Salt 0.01 g
- Total Carbohydrate 17.5 g
- Dietary Fibre 8.07 g
- Total Sugars 3.75 g
- Complex / starch 5.21 g
- Protein 18.9 g
- Water 4.31 g
- Energy 619 kcal
- Water 4.31 g
- Carbohydrates 17.5 g
- Sugars 3.75 g
- Monosaccharides 2.62 g
- Disaccharides 1.13 g
- Starch 5.21 g
- Amylose 1.3 g
- Amylopectin 3.91 g
- Digestible Starch 4.43 g
- Resistant Starch 0.52 g
- Fibre 8.07 g
- Soluble Fibre 2.82 g
- Insoluble Fibre 5.25 g
- Protein 18.9 g
- Plant Protein 18 g
- Fat 53.7 g
- Saturated Fat 6.68 g
- Monounsaturated Fat 26 g
- Polyunsaturated Fat 14.5 g
- Vitamins 110 mg
- Vitamin A 20 µg
- Vitamin B1 — Thiamine 0.17 mg
- Vitamin B2 — Riboflavin 0.13 mg
- Vitamin B3 — Niacin 1.65 mg
- Vitamin B5 — Pantothenic Acid 0.59 mg
- Vitamin B6 0.17 mg
- Vitamin B7 — Biotin 17.3 µg
- Vitamin B9 — Folate 45.8 µg
- Vitamin C 2 mg
- Vitamin E 16.9 mg
- Vitamin K 5.6 µg
- Minerals 223 mg
- Major Minerals 215 mg
- Trace Minerals 8 mg
- Salt 0.01 g
- Sodium Chloride 0.01 g
Vitamins
vitamin-c: 2 · vitamin-a: 20 · vitamin-b1-thiamine: 0.17 · vitamin-b2-riboflavin: 0.13 · vitamin-b3-niacin: 1.65 · vitamin-b5-pantothenic-acid: 0.59 · vitamin-b6: 0.17 · vitamin-b7-biotin: 17.3 · vitamin-b9-folate: 45.8 · vitamin-e: 16.89 · vitamin-k: 5.6 ·
Minerals
Sodium: 4.64 · Potassium: 155 · Calcium: 55 · Iron: 1 · Zinc: 2 · Iodine: 5 ·
Nuts pack energy-dense oils, plant protein, and fibre; sodium stays low until salted.
History
Indigenous peoples of eastern North America used black walnut for food, dye, and wood.
Settlers adopted black walnut as a regional flavour distinct from imported Persian walnuts.
Commercial cracking and ice-cream flavouring made black walnut a Midwestern specialty product.
Premium black walnut kernels and butters remain a US specialty rather than a global bulk nut.