How Long to Roast Brussels Sprouts

By The Recipes by Mom kitchen · Last checked October 21, 2026 · Not kitchen-tested; see how our recipes are made

Halved Brussels sprouts typically roast in 20 to 25 minutes in an oven set between 400 and 425°F (200 to 220°C). The exact time depends on the oven temperature, the size of the sprouts, and whether they are cooked whole or cut.

The roasting times in the accompanying table are a reliable starting point. Factors like the specific performance of your oven and the type of pan you use can also influence the final cooking time. It is always a good idea to check for doneness a few minutes before the suggested time is up.

How Long to Roast Brussels Sprouts: time chart

Table source: Typical ranges from standard cooking practice, not an official chart. Ovens, grills and pieces vary: start checking at the low end of each range.

Good to know

• Place cut sides down for the best browning
• Do not crowd the pan

What changes the roasting time

Several factors determine how long Brussels sprouts need to roast. Understanding them will help you use the time and temperature chart effectively.

• Size and Cut: Smaller pieces cook faster than larger ones because heat can penetrate them more quickly. Halved sprouts have a large, flat surface that can brown and cook faster than the dense center of a whole sprout. For this reason, whole small sprouts require a longer roasting time, about 25 to 30 minutes at 400°F (200°C), to become tender all the way through.
• Oven Temperature: A hotter oven cooks food more quickly. At 425°F (220°C), halved sprouts are done in about 18 to 22 minutes and develop crisp edges. A slightly lower temperature of 400°F (200°C) extends the time to 20 to 25 minutes and results in more even browning on the cut sides.
• Pan Crowding: When Brussels sprouts are packed too tightly on a baking sheet, they trap steam. This prevents the dry, hot air from circulating, which is necessary for roasting. Instead of browning and crisping, crowded sprouts will steam and become soft. Arranging them in a single, even layer with space between each piece ensures they roast properly.

How to tell when they are done

Visual and physical cues are the best way to determine when roasted Brussels sprouts are done. The ideal texture is a combination of tender interiors and browned, slightly crisped exteriors.

For halved sprouts, look for deep browning on the flat, cut sides. The outer leaves may look very dark and crisp, especially at higher temperatures like 425°F (220°C). The centers should be tender enough to be easily pierced with the tip of a knife or a fork. For whole sprouts, the main indicator of doneness is texture. Since they do not have a large cut surface to check for browning, test them by sliding a knife into the center. If it goes in with little resistance, they are ready.

Tips for better roasting results

A few simple techniques can improve the texture and appearance of roasted Brussels sprouts.

• Place cut sides down: For halved sprouts, arranging them with the cut side flat against the hot pan creates the best browning. This direct contact with the metal surface promotes caramelization, which develops a deeper flavor.
• Use an even layer: As mentioned, do not crowd the pan. A single layer allows hot air to circulate around each sprout, which is essential for achieving a roasted texture rather than a steamed one. Use a second baking sheet if necessary.
• Uniform sizes: Try to use sprouts that are similar in size. If you have a mix of large and small ones, cut the larger sprouts into quarters and the smaller ones in half. Cutting pieces to a uniform size helps them all cook at the same rate and be done at the same time.

Sources and method

• USDA FSIS Safe Minimum Internal Temperature Chart
• Time ranges not marked as USDA are typical ranges from standard cooking practice

Last checked October 21, 2026.