Ingredient

Bacon

Cured pork belly or back. Dry-cured bacon browns and crisps; wet-cured, injected bacon leaks a white liquid into the pan and steams instead, which is the single biggest reason home-cooked bacon disappoints.

Sourcing
Look for dry-cured on the label, and buy from a butcher if you can. Streaky is belly and renders more fat; back is leaner and English-style.
Varieties
Streaky, Back, Pancetta, Lardons, Smoked, Unsmoked
Quality cues
Firm, dry-surfaced rashers with clear white fat. A wet, slimy sheen or grey-tinged fat means it is past its best.
Substitutions
Pancetta, Guanciale, Lardons
Storage
Refrigerate at 4°C or below, wrapped, and keep it away from ready-to-eat food. Freezes well laid flat in portions.
Shelf life
Unopened to the pack date; 7 days refrigerated once opened; 3 months frozen
Nutrition

Per 100 g

Calories
309 kcal
Protein
11.7 g
Fat
29.5 g
Carbs
5.3 g
Fibre
2.6 g
Sugars
0 g
Sodium
1465 mg

From USDA FoodData Central (#172439). Raw, edible portion.