In a food processor, blend the roasted peanuts until they form a smooth paste. Add the heavy cream, butter, sugar, and salt, and blend until well combined.

Chill

Transfer the mixture to a bowl and refrigerate for at least 2 hours to firm up.

Fermented Banana Ice Cream Preparation

Mash Bananas

In a bowl, mash the ripe bananas until smooth.

Combine Ingredients

Add coconut milk, sugar, lemon juice, and fermentation starter to the mashed bananas, mixing until fully combined.

Ferment

Cover the bowl with a cloth and let it sit at room temperature for 24-48 hours to ferment.

Churn

Churn the mixture in an ice cream maker according to the manufacturer's instructions until it reaches soft-serve consistency. Transfer to a container and freeze until firm.

Peanut Crumble Preparation

Prepare Crumble

In a bowl, combine roasted peanuts, brown sugar, flour, butter, and salt. Mix until crumbly.

Bake

Spread the crumble mixture on a baking sheet and bake at 350°F (175°C) for 10-12 minutes until golden brown. Let cool.