If you’re yet to incorporate stroopwafels into your training and race-day nutrition, your life is about to receive a joyous injection of gooey goodness. Translating as ‘syrup waffle’, this thin, crisp waffle is a Dutch staple that has evolved, over the past couple of hundred years, from a poor man’s slim pickings to world-class endurance fuel. Remember: when the going gets tough, the tough get gooing.