What is crumble?

Crumble is a dessert made from fruit (often apple) that is baked with a crumbly topping made from flour, butter, and sugar. The fruit is typically sliced and placed in a baking dish, with the crumble topping sprinkled over the top. The dish is then baked until the topping is crispy and the fruit is soft and bubbly. Crumble is often served with ice cream or whipped cream as a delicious and comforting dessert. It can also be made with other types of fruit, such as rhubarb, berries, or peaches. Crumble is a popular dessert in the United Kingdom and is also referred to as a "crisp" in the United States.