Preheat oven (electric cooker: 175 °C/circulating air: 150 °C/gas: see manufacturer). Grease the recesses of a muffin baking tray (12 recesses) with oil. Coarsely chop the peanuts. Peel 2 bananas and crush them with a fork.
Cream maple syrup, vanilla sugar, peanut cream and 5 tablespoons of oil with the whisks of the mixer. First stir in bananas, then soy yoghurt. Mix flour and baking powder and stir into the banana mixture.
Peel or clean, wash and chop the vegetables. Peel and finely chop onion and garlic. Wash thyme, shake dry, remove leaves. Bring 3-4 l salt water (1 teaspoon salt per litre) to the boil.
Spread the dough into the hollows. Bake in a hot oven for about 18 minutes. Remove and let cool for about 5 minutes. Carefully remove the muffins from the trays and let them cool down.
Break the chocolate into pieces and melt in a hot water bath. Peel the rest of the banana and cut it into slices about 1⁄2 cm thick. Put 1 blob of chocolate on each muffin. Put banana slices on top.
Add the rest of the chocolate in strips. Leave to dry.