Slow oven toasting can develop a subtle caramel-like flavor while much of the sugar remains granular. Results vary with oven accuracy, batch size, and the baking dish.

Recipe at a glance

Yield: one batch; final weight varies slightly
Timing: use the stages and doneness cues below; yield and timing have not been kitchen-verified in this audit.

Estimated prep time: 5 minutes
Estimated cooking/resting: 1–5 hours plus about 2 hours cooling
Total time: includes the preparation, cooking, and resting stages above.
Difficulty: Level 3 — Intermediate ■■■□□
Cost: Level 1 — Budget $$$$$

Ingredients

• 4 pounds (about 9 cups; 1.8 kilograms) granulated white sugar

Instructions

1. Heat the oven to 300°F with a rack near the center. Use a 9 × 13-inch glass or ceramic baking dish explicitly rated for this oven use; follow its manufacturer’s handling instructions.
2. Spread the sugar in the dish. Toast until lightly ivory, checking at about 1 hour. Stir carefully with a heat-safe utensil.
3. Continue to the color and aroma you prefer, stirring about every 30 minutes and watching closely for melting or hot spots. The original further 2–4 hours is only an estimate.
4. If liquid caramel appears, stop heating. Do not try to touch or handle the hot sugar by hand. Allow it to cool safely in a heatproof location.
5. Once completely cool, break up small clumps if necessary and store in a clean, dry, airtight container.

Cook’s notes

Hot sugar can cause severe burns. Do not set hot glass on a cold or wet surface. Toasting does not make sugar calorie-free, and its behavior is not guaranteed identical in every recipe. Begin with a small trial in the intended baked good; deeper toasting or grinding changes the result.

Serving suggestions

Try in a small batch of cookies, a custard, or a hot drink before making a direct substitution in a large recipe.

Beverage suggestions

Use to sweeten coffee or tea to taste.