Chocolate & Banana Fudge Muffins

2 egg
2 dl sugar
50 g melted butter
1/2 cooking oil (not olive oil)
100 g 70% dark chocolate
1 ripe banana
2 dl flour
1 dl cacao
1 tsp vanilla
1 tsp baking powder
1/2 tsp salt

Whip egg and sugar until fluffy and white. Add melted butter, oil and melted chocolate. Add a mashed ripe banana. Mix the dry ingredients together in a separate bowl and fold carefully in the egg and butter mix. Pour into muffin forms. Oven: 175° C for about 15 minutes