This is a Scandinavian-influenced banana bread that thinks it’s a cake, with optional naturally-coloured and flavoured blueberry glaze. Gluten-free, vegan and lower in sugar, my blueberry and cardamom banana cake is a delightfully soft and squidgy breakfast cake or healthy snack. For years I have had a not-so-secret crush on cardamom. Although I enjoy savouring the superlative …