Preheat oven to 375°F (190°C). Prepare a tray lined with baking paper.
Clean the butternut squash from the seeds. Scoop it out using a spoon. Put sugar equally in both holes. Cover with foil and put in the oven for 20 minutes. After 20 minutes, remove the foil and test the pumpkin with a toothpick or fork to see if it has softened. If it has softened, completely remove the foil and leave it in the oven for another 10 minutes. (Note: If the butternut squash has not softened after 20 minutes, cover it again with foil and leave for another 10 - 15 minutes.)
1 whole butternut squash, 1 cups granulated sugar
To make the topping, put 3 tablespoons of water and the entire amount of brown sugar in a small saucepan. Heat over medium heat until the sugar melts. Stir continuously to prevent burning. Reduce the heat to low and leave for a few minutes until the mixture begins to acquire a darker color and thicken. The idea is to make caramel. (Note: Do not heat the caramel for too long so that it does not blacken and thicken too much.)
½ cup dark brown sugar
After you have made the caramel, add the chopped walnuts, and the breadcrumbs to them. Mix well and pour onto baking paper to cool.
½ cup walnuts, ¼ cup breadcrumbs
Once the nuts have cooled, put them in a blender and blend for a few seconds or until you get small crumbs.
Heat water in a large pot. After the water boils, add the macaroni and cook according to the instructions on the package. Drain the pasta and return to the pot.
1 package macaroni
After you have baked the butternut squash, use a spoon to carefully scoop out the flesh and put it in a blender. Add the peanut butter, cinnamon, vanilla extract, and milk. Beat well until the ingredients are mixed and you get a not-too-liquid and smooth mixture.
2 cups soya milk, 1 cup peanut butter, 2 teaspoons cinnamon, 1 teaspoon vanilla extract
Add the butternut squash mixture to the pasta pot and stir well until the ingredients are combined. Pour into a casserole (grease the casserole with butter oil, or baking spray). Spread evenly.
Add the caramelized walnuts on top. Sprinkle a little more brown sugar on top and put in the oven for 15-20 minutes or until the dish is browned.
Serve with Greek yogurt or your favorite vanilla ice cream.