Ingredient

Almond

The most versatile nut in a kitchen: eaten whole, ground into flour, pressed for oil or soaked for milk. Blanched almonds have had the brown skin slipped off, which matters for colour in a pale cake or a delicate sauce.

Sourcing
Buy from a shop with turnover — nuts sit badly. Whole almonds in their skins keep longest; flaked and ground go rancid fastest because more surface meets air.
Varieties
Whole, Blanched, Flaked, Ground
Quality cues
Should snap cleanly and taste sweet. Any bitterness or a paint-like smell means the oils have turned, and no amount of toasting brings them back.
Substitutions
Hazelnut, Cashew, Macadamia
Storage
Airtight and cool. The fridge or freezer is worth it for flaked, ground or anything you will not finish within a month.
Shelf life
Whole 6-12 months in the cupboard, up to 2 years frozen; ground or flaked closer to 3 months
Nutrition

Per 100 g

Calories
579 kcal
Protein
21.1 g
Fat
49.9 g
Carbs
21.6 g
Fibre
12.5 g
Sugars
4.3 g
Sodium
1 mg

From USDA FoodData Central (#170567). Raw, edible portion.