If your child is a fan of peanut butter and jelly sandwiches, they will adore this Thermomix recipe for a peanut butter and jelly cake. The cake layers are infused with peanut butter flavor and filled with a sweet and tangy raspberry jelly. Frost the cake with a creamy peanut butter frosting and garnish with crushed peanuts or fresh raspberries. This cake is a unique twist on a classic combination and will surely be a hit among kids and adults alike.