Slow roast crabapples, which are smaller and tarter than other apples, by baking them in the oven for one hour and 30 minutes at 300 degrees Fahrenheit. To roast crabapples, it is necessary to have a rimmed baking sheet and oil.
Begin by washing the apples well. Dry the apples, and coat them with a small amount of neutral tasting oil, such as canola or vegetable oil. Sprinkle them with cinnamon or nutmeg for additional flavor. While the roasting process brings out the sweetness of the apple, you can add sugar to them before baking if desired. Place the apples on a rimmed baking sheet in a single layer.
For medium-sized crabapples, which are about 1.5 inches in diameter, bake for an hour and a 30 minutes. Larger apples take more time to bake, while smaller apples take less time. The apples are done when they are soft and the skin wrinkles.
Once the apples are out of the oven, let them cool slightly before eating. Eat the apples whole, or gently pull the core out and serve on a plate drizzled with honey or maple syrup. Another option is to use the roasted apples to make chutney or jam.