Step 1

Preheat the oven to 175°C/350°F.

Step 2

Butter the baking pan.

Step 3

In a bowl, mix the brown sugar, flour, rolled oats, butter, and nuts (optional) to obtain a crumbly mixture.

Step 4

Put half of the mixture into the baking pan, spreading it evenly.

Step 5

Put the cranberries on top of the mixture, then layer the remaining mixture over the berries.

Step 6

Bake in the middle of the oven until the fruit is tender and the topping is golden, about 35-40 min.

Step 7

Take the crumble out of the oven and let it cool down at least 30 min before serving with vanilla ice-cream (optional).