Beetroot: 100g (1 medium, peeled and grated), Whole wheat flour: 60g (1/2 cup), Cocoa powder (unsweetened): 15g (2 tbsp), Baking powder: 2g (1/2 tsp), Baking soda: 1g (1/4 tsp), Salt: 1g (pinch), Egg: 50g (1 large), Greek yogurt (plain, low-fat): 60g (1/4 cup), Honey: 30g (1.5 tbsp), Vanilla extract: 2ml (1/2 tsp), Olive oil: 15ml (1 tbsp), Dark chocolate chips: 15g (1 tbsp)