Gluten-free Banana Cake with Chocolate Frosting

Ingredients

• 400 g Banana ((1.5 cups))
• 190 g Yogurt ((¾ cup))
• 1 tbsp Lemon Juice or Vinegar
• 60 g Liquid Sweetener ((3 tbsp))
• 225 g Oat Flour ((2 ¼ cups))
• 1 tsp Bicarbonate of Soda
• ½ tsp Salt
• 250 g Yogurt ((1 cup))
• 40 g Cocoa Powder ((½ cup))
• 40 g Liquid Sweetener ((2 tbsp))